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{{short description|Lok Sabha constituency in West Bengal}}
{{Use dmy dates|date=October 2017}}
{{Use Indian English|date=October 2017}}
{{Infobox Indian constituency
| type = LS
| name = Diamond Harbour {{Small|WB-21}}
| constituency_no =
| map_image = {{Maplink|frame=yes|plain=y|frame-width=300|frame-height=300|frame-align=center|type=shape|from=Lok Sabha constituencies/2019/West Bengal/Diamond Harbour.map}}
| map_caption = Interactive Map Outlining Diamond Harbour Lok Sabha Constituency
| established = 1952–Present
| reservation = None
| incumbent_image = Abhishek_Banerjee_Photo.jpg
| mp = [[Abhishek Banerjee (politician)|Abhishek Banerjee]]
| party = {{Party index link|Trinamool Congress}}
| alliance = {{Party index link|Indian National Developmental Inclusive Alliance}}
| latest_election_year = [[2024 Indian general election|2024]]
| state = [[West Bengal]]
| electors = 1,712,612<ref name=turnout>{{cite web|url=http://eci.nic.in/eci_main1/GE2014/PC_WISE_TURNOUT.htm |title=Parliamentary Constituency Wise Turnout for General Elections 2014 |work=West Bengal |publisher=Election Commission of India |access-date=2 June 2014 |url-status=dead |archive-url=https://web.archive.org/web/20140702210941/http://eci.nic.in/eci_main1/GE2014/PC_WISE_TURNOUT.htm |archive-date=2 July 2014 }}</ref>
| assembly_cons = [[Diamond Harbour Assembly constituency|Diamond Harbour]] [[Falta Assembly constituency|Falta]] [[Satgachhia Assembly constituency|Satgachhia]] [[Bishnupur, South 24 Parganas Assembly constituency|Bishnupur]] [[Maheshtala Assembly constituency|Maheshtala]] [[Budge Budge Assembly constituency|Budge Budge]] [[Metiaburuz Assembly constituency|Metiaburuz]]
}}

'''Diamond Harbour Lok Sabha constituency''' is one of the 543 [[Lok Sabha|Parliamentary]] constituencies in [[India]]. The constituency centres on [[Diamond Harbour]] in [[West Bengal]]. All seven legislative assembly segments of No. 21 Diamond Harbour Lok Sabha constituency are in [[South 24 Parganas]] district.

==Assembly segments==
[[File:Westbengalen Wahlkreise Lok Sabha.svg|thumb|350 px|right|'''Parliamentary constituencies in West Bengal''' - 1. Cooch Behar, 2. Alipurduars, 3. Jalpaiguri, 4. Darjeeling, 5. Raiganj, 6. Balurghat, 7. Maldaha Uttar, 8. Maldaha Dakshin, 9. Jangipur, 10. Baharampur, 11. Murshidabad, 12. Krishnanagar, 13. Ranaghat, 14. Bangaon, 15. Barrackpore, 16. Dum Dum, 17. Barasat, 18. Basirhat, 19. Jaynagar, 20. Mathurapur, 21. '''Diamond Harbour''', 22. Jadavpur, 23. Kolkata Dakshin, 24. Kolkata Uttar, 25. Howrah, 26. Uluberia, 27. Serampore, 28. Hooghly, 29. Arambagh, 30. Tamluk, 31, Kanthi, 32. Ghatal, 33. Jhargram, 34. Medinipur, 35. Purulia, 36. Bankura, 37. Bishnupur, 38. Bardhaman Purba, 39. Bardhaman Durgapur, 40. Asansol, 41. Bolpur, 42. Birbhum]]

As per order of the [[Delimitation Commission]] in respect of the [[Delimitation of constituencies]] in the [[West Bengal]], Diamond Harbour Lok Sabha constituency is composed of the following legislative assembly segments from 2009:<ref name =delimitation>{{cite web| url = http://eci.nic.in/delim/Final_Publications/WestBengal/FINAL%20ORDER%20NOTIFICATION_English.pdf | title = Delimitation Commission Order No. 18 | access-date = 2009-05-27 | work = Table B – Extent of Parliamentary Constituencies | publisher =Government of West Bengal}}</ref>

{| class="wikitable sortable"
! #
! Name
! District
! Member
! colspan="2" |[[2026 West Bengal Legislative Assembly election|Party]]
! colspan="2" |2024 Lead
|-
|143
|[[Diamond Harbour Assembly constituency|Diamond Harbour]]
|rowspan="7" |[[South 24 Parganas]]
|[[Pannalal Halder]]
|{{party name with color|Trinamool Congress}}
|{{party name with color|Trinamool Congress|rowspan=7}}
|-
|144
|[[Falta Assembly constituency|Falta]]
!colspan=3|Vacant{{efn|Polling to be conducted on 21 May 2026.}}
|-
|145
|[[Satgachhia Assembly constituency|Satgachhia]]
|Agniswar Naskar
|{{party name with color|Bharatiya Janata Party}}
|-
|146
|[[Bishnupur, South 24 Parganas Assembly constituency|Bishnupur (SC)]]
|[[Dilip Mondal]]
|{{party name with color|Trinamool Congress|rowspan=4}}
|-
|155
|[[Maheshtala Assembly constituency|Maheshtala]]
|Subhasish Das
|-
|156
|[[Budge Budge Assembly constituency|Budge Budge]]
|[[Ashok Kumar Deb]]
|-
|157
|[[Metiaburuz Assembly constituency|Metiaburuz]]
|[[Abdul Khaleque Molla]]
|-
|}

== Members of Parliament ==
{| class="wikitable"
!Year
!Name
!Colspan=2|Party
|-
| rowspan="2"|[[1952 Indian general election|1952]]
|[[Kamal Basu]]
|{{Full party name with color|Communist Party of India}}
|-
|[[Purnendu Sekhar Naskar]]
|{{Full party name with color|Indian National Congress}}<ref name=loksabha1952>{{cite web|url=http://eci.nic.in/eci_main/StatisticalReports/LS_1951/VOL_1_51_LS.PDF |title=General Elections, India, 1951- Constituency Wise Detailed Results |work=West Bengal |publisher=Election Commission |access-date=25 May 2014 |url-status=dead |archive-url=https://web.archive.org/web/20141008191615/http://eci.nic.in/eci_main/StatisticalReports/LS_1951/VOL_1_51_LS.PDF |archive-date=8 October 2014 }}</ref>
|-
| rowspan="2"|[[1957 Indian general election|1957]]
|[[Purnendu Sekhar Naskar]]
|{{Full party name with color|Indian National Congress}}
|-
|[[Kansari Halder]]
|{{Full party name with color|Communist Party of India}}
|-
|[[1962 Indian general election|1962]]
|[[Sudhansu Bhushan Das]]
|{{Full party name with color|Indian National Congress}}
|-
|[[1967 Indian general election|1967]]
| rowspan="4"|[[Jyotirmoy Basu]]
|{{Full party name with color|Communist Party of India (Marxist)|dab=yes|rowspan=12}}
|-
|[[1971 Indian general election|1971]]
|-
|[[1977 Indian general election|1977]]
|-
|[[1980 Indian general election|1980]]
|-
|1982^
| rowspan="4"|[[Amal Datta]]
|-
|[[1984 Indian general election|1984]]
|-
|[[1989 Indian general election|1989]]
|-
|[[1991 Indian general election|1991]]
|-
|[[1996 Indian general election|1996]]
| rowspan="4"|[[Samik Lahiri]]
|-
|[[1998 Indian general election|1998]]
|-
|[[1999 Indian general election|1999]]
|-
|[[2004 Indian general election|2004]]
|-
|[[2009 Indian general election|2009]]
|[[Somen Mitra]]
|{{Full party name with color|Trinamool Congress|rowspan=4}}
|-
|[[2014 Indian general election|2014]]
| rowspan="3"|[[Abhishek Banerjee (politician)|Abhishek Banerjee]]
|-
|[[2019 Indian general election in West Bengal|2019]]
|-
|[[2024 Indian general election|2024]]
|}
^ by-poll

==Election results==

===General Election 2024===
{{Election box begin | title=[[2024 Indian general elections]]: [[Diamond Harbour]]<ref name="2024 Loksabha Elections Results - Diamond Harbour">{{cite news |title=2024 Loksabha Elections Results - Diamond Harbour |url=https://results.eci.gov.in/PcResultGenJune2024/candidateswise-S2521.htm |access-date=13 July 2025 |work= |publisher=Election Commission of India |date=4 June 2024 |archive-url=https://web.archive.org/web/20250713174150/https://results.eci.gov.in/PcResultGenJune2024/candidateswise-S2521.htm |archive-date=13 July 2025 |language=en}}</ref><ref name="Diamond Harbour Constituency Lok Sabha Election Results 2014 - 2024">{{cite news |title=Diamond Harbour Constituency Lok Sabha Election Results 2014 - 2024 |url=https://timesofindia.indiatimes.com/elections/lok-sabha-constituencies/west-bengal/diamond-harbour |access-date=13 July 2025 |work= |publisher=The Times of India |date=4 June 2024 |archive-url=https://web.archive.org/web/20250713174230/https://timesofindia.indiatimes.com/elections/lok-sabha-constituencies/west-bengal/diamond-harbour |archive-date=13 July 2025 |language=en}}</ref>}}

{{Election box winning candidate with party link
|candidate = [[Abhishek Banerjee (politician)|Abhishek Banerjee]]
|party = All India Trinamool Congress
|votes = {{formatnum:1048230}}
|percentage = 68.48
|change ={{increase}}12.33
}}
{{Election box candidate with party link|candidate=Abhijit Das|party=Bharatiya Janata Party|votes={{formatnum:337300}}|percentage=22.03|change={{decrease}}11.36}}
{{Election box candidate with party link|candidate=Pratikur Rahman|party=Communist Party of India (Marxist)|votes={{formatnum:86953}}|percentage=5.68|change={{decrease}}0.99}}
{{Election box candidate with party link|candidate=Majnu Laskar|party=Indian Secular Front|votes={{formatnum:21139}}|percentage=1.38|change={{increase}}1.38}}
{{Election box candidate with party link|candidate=None of the above|party=NOTA|votes={{formatnum:10188}}|percentage=|change=}}
{{Election box majority|votes={{formatnum:710930}}|percentage=|change=}}
{{Election box turnout|votes={{formatnum:1530817}}|percentage=|change=}}
{{Election box hold with party link
|winner = All India Trinamool Congress
|swing =
}}
{{Election box end}}

===General Election 2019===
{{Election box begin | title=[[2019 Indian general elections]]: [[Diamond Harbour]]}}
{{Election box winning candidate with party link
|candidate = [[Abhishek Banerjee (politician)|Abhishek Banerjee]]
|party = All India Trinamool Congress
|votes = 791,127
|percentage = 56.15
|change = +15.82
}}
{{Election box candidate with party link
|candidate = Nilanjan Roy
|party = Bharatiya Janata Party
|votes = 470,533
|percentage = 33.39
|change = +17.46
}}
{{Election box candidate with party link
|candidate = Dr. Fuad Halim
|party = Communist Party of India (Marxist)
|votes = 93,941
|percentage = 6.67
|change = -28.00
}}
{{Election box candidate with party link
|candidate = Soumya Aich Roy
|party = Indian National Congress
|votes = 19,828
|percentage = 1.41
|change = -3.6
}}
{{Election box candidate with party link
|candidate = Md. Goribulla Molla
|party = Bahujan Samaj Party
|votes = 2,911
|percentage = 0.21
|change =
}}
{{Election box candidate with party link
|candidate = Ajay Ghosh
|party = Socialist Unity Centre of India (Communist)
|votes = 1,846
|percentage = 0.13
|change =
}}
{{Election box candidate with party link
|candidate = None of the above
|party = None of the above
|votes = 16,247
|percentage = 1.15
|change =
}}
{{Election box majority
|votes = 320,594
|percentage = 22.76
|change =
}}
{{Election box turnout
|votes = 1,409,373
|percentage = 81.98
|change =
}}
{{Election box hold with party link
|winner = All India Trinamool Congress
|loser =
|swing =
}}
{{Election box end}}

===General Election 2014===
{{Election box begin | title=[[2014 Indian general election]]: Diamond Harbour <ref name=loksabha2014>{{cite web| url = http://eci.nic.in/eci_main/archiveofge2014/33%20-%20Constituency%20wise%20detailed%20result.pdf |title = General Elections 2014 - Constituency Wise Detailed Results |work = West Bengal | publisher = Election Commission of India|access-date = 21 June 2016 }}</ref>}}
{{Election box winning candidate with party link
|candidate = [[Abhishek Banerjee (politician)|Abhishek Banerjee]]
|party = All India Trinamool Congress
|votes = 508,481
|percentage = 40.31
|change = -13.25
}}
{{Election box candidate with party link|candidate=[[Abul Hasnat (Magrahat Paschim politician)|Dr. Abul Hasnat]]|party=Communist Party of India (Marxist)|votes=437,187|percentage=34.66|change=-4.51}}
{{Election box candidate with party link|party=Bharatiya Janata Party|candidate=Abhijit Das|votes=200,858|percentage=15.92|change=+12.36}}
{{Election box candidate with party link|candidate=Md. Qamaruzzaman Qamar|party=Indian National Congress|votes=63,047|percentage=5.00|change=+5.00}}
{{Election box candidate with party link|candidate=[[Ranu Mondal]]|party=Independent (politician)|votes=8,740|percentage=|change=}}
{{Election box candidate with party link|candidate=[[Nirapada Sardar]]|party=Independent (politician)|votes=6,634|percentage=|change=}}
{{Election box candidate with party link|candidate=[[Moly Mondal]]|party=Independent (politician)|votes=6,633|percentage=|change=}}
{{Election box candidate with party link|candidate=[[Sk Samim]]|party=Independent (politician)|votes=3,607|percentage=|change=}}
{{Election box candidate with party link|candidate=[[Nazma Yasmeen]]|party=Welfare Party of India|votes=3,272|percentage=|change=}}
{{Election box candidate with party link|candidate=[[Dilip Kumar Mondal]]|party=Bahujan Samaj Party|votes=2,892|percentage=|change=}}
{{Election box candidate with party link|candidate=Ajay Ghosh|party=Socialist Unity Centre of India (Communist)|votes=2,529|percentage=|change=}}
{{Election box candidate with party link|candidate=[[Jaynal Abedin Mondal]]|party=Indian Union Muslim League|votes=1,856|percentage=|change=}}

{{Election box candidate with party link|candidate=[[Samir Putatunda]]|party=Party of Democratic Socialism (India)|votes=1,322|percentage=|change=}}
{{Election box candidate with party link|candidate=[[Habibur Rahman Molla]]|party=Rashtriya Janasachetan Party|votes=1,260|percentage=|change=}}
{{Election box candidate with party link|candidate=[[Alok Sen]]|party=Independent (politician)|votes=977|percentage=|change=}}
{{Election box candidate with party link|candidate=None Of The Above|party=None of the Above|votes=10,657|percentage=0.84|change=---}}
{{Election box majority|votes=71,298|percentage=5.65|change=-8.74}}
{{Election box turnout|votes=12,61,296|percentage=81.06|change=}}
{{Election box hold with party link
|winner = All India Trinamool Congress
|swing =
}}
{{Election box end}}

===General Election 2009===
{{Election box begin | title=[[2009 Indian general election|General Election, 2009]]: Diamond Harbour<ref name=loksabha2009>{{cite web|url=http://eci.nic.in/eci_main/archiveofge2009/Stats/VOLI/25_ConstituencyWiseDetailedResult.pdf |title=General Elections, 2009 - Constituency Wise Detailed Results |work=West Bengal |publisher=Election Commission of India |access-date=25 May 2014 |url-status=dead |archive-url=https://web.archive.org/web/20140811090059/http://eci.nic.in/eci_main/archiveofge2009/Stats/VOLI/25_ConstituencyWiseDetailedResult.pdf |archive-date=11 August 2014 }}</ref>}}
{{Election box winning candidate with party link
|party = All India Trinamool Congress
|candidate = [[Somen Mitra]]
|votes = 564,612
|percentage = 53.56
|change = +20.36
}}
{{Election box candidate with party link|party=Communist Party of India (Marxist)|candidate=[[Samik Lahiri]]|votes=412,923|percentage=39.17|change=-12.43}}
{{Election box candidate with party link|party=Bharatiya Janata Party|candidate=Abhijit Das|votes=37,542|percentage=2.88|change=}}
{{Election box candidate
|party = [[Independent (politician)|Independent]]
|candidate = [[Ranu Mondal]]
|votes = 9,966
|percentage = 0.77
|change =
}}
{{Election box candidate with party link|party=Samajwadi Party|candidate=[[Sk Nasiruddin]]|votes=7,486|percentage=0.57|change=}}
{{Election box candidate with party link|party=Nationalist Congress Party|candidate=[[Harunal Rashid Kaji]]|votes=7,187|percentage=0.55|change=}}
{{Election box candidate with party link|party=Bahujan Samaj Party|candidate=[[R.N. Chaudhury]]|votes=4,989|percentage=0.38|change=}}
{{Election box candidate
|party = [[Independent (politician)|Independent]]
|candidate = [[Jahangir Sk]]
|votes = 4,282
|percentage = 0.32
|change =
}}
{{Election box candidate
|party = ABP
|candidate = [[Shyamal Mondal]]
|votes = 2,664
|percentage = 0.20
|change =
}}
{{Election box candidate
|party = [[Independent (politician)|Independent]]
|candidate = [[Mohan Chandra Naskar]]
|votes = 2,535
|percentage = 0.19
|change =
}}
{{Election box majority|votes=151,689|percentage=14.39|change=}}
{{Election box turnout|votes=1,054,112|percentage=80.94|change=}}
{{Election box gain with party link
|winner = All India Trinamool Congress
|loser = Communist Party of India (Marxist)
|swing =
}}
{{Election box end}}

===General Election 2004===
{{Election box begin | title=[[2004 Indian general election|General Election, 2004]]: Diamond Harbour<ref name=loksabha2004>{{cite web| url = http://eci.nic.in/eci_main/StatisticalReports/LS_2004/Vol_I_LS_2004.pdf |title = General Elections, 2004 - Constituency Wise Detailed Results |work = West Bengal | publisher = Election Commission of India|access-date = 25 May 2014 }}</ref>}}
{{Election box winning candidate with party link
|party = Communist Party of India (Marxist)
|candidate = [[Samik Lahiri]]
|votes = 430,890
|percentage = 51.60
|change = + 3.90
}}
{{Election box candidate with party link
|party = All India Trinamool Congress
|candidate = [[Saugata Roy|Sougata Roy]]
|votes = 277,106
|percentage = 33.20
|change =
}}
{{Election box candidate with party link
|party = Indian National Congress
|candidate = Daulat Ali Sheikh
|votes = 92,807
|percentage = 11.10
|change =
}}
{{Election box candidate
|party = [[Independent (politician)|Independent]]
|candidate = [[Nabakumar Betal]]
|votes = 8427
|percentage = 1.00
|change =
}}
{{Election box candidate with party link
|party = Nationalist Congress Party
|candidate = [[Somashree Betal]]
|votes = 5559
|percentage = 0.70
|change =
}}
{{Election box candidate with party link
|party = Indian National League
|candidate = [[Palas Karmakar]]
|votes = 4989
|percentage = 0.50
|change =
}}
{{Election box candidate
|party = [[Independent (politician)|Independent]]
|candidate = [[Ranu Mondal]]
|votes = 5559
|percentage = 0.50
|change =
}}
{{Election box candidate
|party = [[Bahujan Samaj Party|BSP]]
|candidate = [[Moly Mondal]]
|votes = 4455
|percentage = 0.40
|change =
}}
{{Election box candidate
|party = [[Independent (politician)|Independent]]
|candidate = [[Bipro Das Adhikari]]
|votes = 4001
|percentage = 0.40
|change =
}}
{{Election box candidate
|party = [[Bangla Congress]]
|candidate = [[Mala Banerjee]]
|votes = 3663
|percentage = 0.30
|change =
}}
{{Election box candidate
|party = [[Samajwadi Party|SP]]
|candidate = [[Sheikh Nazrul Islam]]
|votes = 3411
|percentage = 0.30
|change =
}}
{{Election box candidate
|party = [[Independent (politician)|Independent]]
|candidate = [[Sk Samim]]
|votes = 2592
|percentage = 0.20
|change =
}}
{{Election box majority
|votes = 153,784
|percentage = 18.4%
|change =
}}
{{Election box turnout
|votes = 8,35,475
|percentage = 75.8%
|change =
}}
{{Election box hold with party link
|winner = Communist Party of India (Marxist)
|loser = All India Trinamool Congress
|swing =
}}
{{Election box end}}

===General Election 1999===
{{Election box begin | title=[[1999 Indian general election|General Election, 1999]]: Diamond Harbour<ref name=loksabha1999>{{cite web|url=http://eci.nic.in/eci_main/StatisticalReports/LS_1999/Vol_I_LS_99.pdf |title=General Elections, 1999 - Constituency Wise Detailed Results |work=West Bengal |publisher=Election Commission of India |access-date=25 May 2014 |url-status=dead |archive-url=https://web.archive.org/web/20140718183222/http://eci.nic.in/eci_main/StatisticalReports/LS_1999/Vol_I_LS_99.pdf |archive-date=18 July 2014 }}</ref>}}
{{Election box winning candidate with party link
|party = Communist Party of India (Marxist)
|candidate = [[Samik Lahiri]]
|votes = 402,761
|percentage = 47.10
|change =
}}
{{Election box candidate with party link
|party = All India Trinamool Congress
|candidate = [[Sardar Amjad Ali]]
|votes = 331,598
|percentage = 39.27
|change =
}}
{{Election box candidate with party link
|party = Indian National Congress
|candidate = Daulat Ali Sheikh
|votes = 106,344
|percentage = 12.59
|change =
}}
{{Election box candidate
|party = [[Independent (politician)|Independent]]
|candidate = [[Ranu Mondal]]
|votes = 1165
|percentage = 0.14
|change =
}}
{{Election box candidate with party link
|party = Independent (politician)|Independent
|candidate = [[Bhola Sardar]]
|votes = 1088
|percentage = 0.13
|change =
}}
{{Election box candidate with party link
|party = Independent (politician)|Independent
|candidate = [[Somashree Betal]]
|votes = 814
|percentage = 0.10
|change =
}}
{{Election box candidate
|party = [[Independent (politician)|Independent]]
|candidate = [[Moly Gomes]]
|votes = 572
|percentage = 0.07
|change =
}}
{{Election box majority
|votes = 71,163
|percentage = 8.3%
|change =
}}
{{Election box turnout
|votes = 8,58,209
|percentage = 75.5%
|change =
}}
{{Election box hold with party link
|winner = Communist Party of India (Marxist)
|loser = All India Trinamool Congress
|swing =
}}
{{Election box end}}

===General Election 1998===
{{Election box begin | title=[[1998 Indian general election|General Election, 1998]]: Diamond Harbour<ref name=loksabha1998>{{cite web|url=http://eci.nic.in/eci_main/StatisticalReports/LS_1998/Vol_I_LS_98.pdf |title=General Elections, 1998 - Constituency Wise Detailed Results |work=West Bengal |publisher=Election Commission of India |access-date=25 May 2014 |url-status=dead |archive-url=https://web.archive.org/web/20140718181833/http://eci.nic.in/eci_main/StatisticalReports/LS_1998/Vol_I_LS_98.pdf |archive-date=18 July 2014 }}</ref>}}
{{Election box winning candidate with party link
|party = Communist Party of India (Marxist)
|candidate = [[Samik Lahiri]]
|votes = 405,048
|percentage = 45.97
|change =
}}
{{Election box candidate with party link
|party = All India Trinamool Congress
|candidate = [[Kakoli Ghosh Dastidar]]
|votes = 344,092
|percentage = 39.05
|change =
}}
{{Election box candidate with party link
|party = Indian National Congress
|candidate = [[Maya Ghosh]]
|votes = 124,335
|percentage = 14.11
|change =
}}
{{Election box candidate
|party = [[Independent (politician)|Independent]]
|candidate = [[Shahadat Hossain Jamadar]]
|votes = 3210
|percentage = 0.36
|change =
}}
{{Election box candidate with party link
|party = Independent (politician)|Independent
|candidate = [[Ranu Mondal]]
|votes = 2229
|percentage = 0.25
|change =
}}
{{Election box candidate with party link
|party = Independent (politician)|Independent
|candidate = [[Ranendra Kumar Gupta]]
|votes = 1550
|percentage = 0.18
|change =
}}
{{Election box candidate
|party = [[Independent (politician)|Independent]]
|candidate = [[Sambhu Mondal]]
|votes = 640
|percentage = 0.07
|change =
}}
{{Election box majority
|votes = 60,956
|percentage = 6.8%
|change =
}}
{{Election box turnout
|votes = 8,96,052
|percentage = 79.8%
|change =
}}
{{Election box hold with party link
|winner = Communist Party of India (Marxist)
|loser = All India Trinamool Congress
|swing =
}}
{{Election box end}}

===General Election 1996===
{{Election box begin | title=[[1996 Indian general election|General Election, 1996]]: Diamond Harbour<ref name=loksabha1996>{{cite web| url = http://eci.nic.in/eci_main/StatisticalReports/LS_1996/Vol_I_LS_96.pdf |title = General Elections, 1996 - Constituency Wise Detailed Results |work = West Bengal | publisher = Election Commission of India|access-date = 25 May 2014 }}</ref>}}
{{Election box winning candidate with party link
|party = Communist Party of India (Marxist)
|candidate = [[Samik Lahiri]]
|votes = 411,844
|percentage = 47.37
|change =
}}
{{Election box candidate with party link
|party = Indian National Congress
|candidate = [[Sardar Amjad Ali]]
|votes = 389,318
|percentage = 44.77
|change =
}}
{{Election box candidate with party link
|party = Bharatiya Janata Party
|candidate = Dulal Chaudhuri
|votes = 55,518
|percentage = 6.38
|change =
}}
{{Election box candidate
|party = MUL
|candidate = [[Ruhulamine Mollick]]
|votes = 4365
|percentage = 0.50
|change =
}}
{{Election box candidate with party link
|party = Shiv Sena
|candidate = [[Arjun Kapoor]]
|votes = 3381
|percentage = 0.39
|change =
}}
{{Election box candidate with party link
|party = Independent (politician)|Independent
|candidate = [[Gyanananda Samanta]]
|votes = 2139
|percentage = 0.25
|change =
}}
{{Election box candidate
|party = [[Independent (politician)|Independent]]
|candidate = [[Samima Sk]]
|votes = 2010
|percentage = 0.23
|change =
}}
{{Election box majority
|votes = 22,526
|percentage = 2.5%
|change =
}}
{{Election box turnout
|votes = 8,89,735
|percentage = 80.5%
|change =
}}
{{Election box hold with party link
|winner = Communist Party of India (Marxist)
|loser = All India Trinamool Congress
|swing =
}}
{{Election box end}}

===General Elections 1951-2004===
Diamond Harbour Lok Sabha constituency was a double-member constituency in 1951 and 1957. Since then it is a single-member constituency. Most of the contests were multi-cornered. However, only winners and runners-up are mentioned below:
{| class="wikitable sortable"
|-
!Year
!Winner
|
!Runner-up
|-
|
!
!Party
!Candidate
!Party
|-
|1951
|[[Kamal Basu]]
|[[Communist Party of India]]
|
|
|-
|
|[[Purnendu Sekhar Naskar]]
|[[Indian National Congress]]
|[[Mahabir Prosad]]
|[[Indian National Congress]]<ref name=loksabha1952/>
|-
|1957
|[[Kansari Halder]]
|[[Communist Party of India]]
|
|
|-
|
|[[Purnendu Sekhar Naskar]]
|[[Indian National Congress]]
|[[Kamal Basu]]
|[[Communist Party of India]]<ref name=loksabha1957>{{cite web| url = http://eci.nic.in/eci_main/StatisticalReports/LS_1957/Vol_I_57_LS.pdf|title = General Elections, India, 1957- Constituency Wise Detailed Results |work = West Bengal | publisher= Election Commission | access-date = 25 May 2014}}</ref>
|-
|1962
|[[Sudhansu Bhusan Das]]
|[[Indian National Congress]]
|[[Kamal Basu]]
|[[Communist Party of India]]<ref name=loksabha1962>{{cite web| url = http://eci.nic.in/eci_main/StatisticalReports/LS_1962/Vol_I_LS_62.pdf |title = General Elections, India, 1962- Constituency Wise Detailed Results |work = West Bengal | publisher= Election Commission | access-date = 25 May 2014}}</ref>
|-
|1967
|[[Jyotirmoy Basu]]
|[[Communist Party of India (Marxist)]]
|[[Sudhansu Bhusan Das]]
|[[Indian National Congress]]<ref name=loksabha1967>{{cite web| url = http://eci.nic.in/eci_main/StatisticalReports/LS_1967/Vol_I_LS_67.pdf |title = General Elections, India, 1967 - Constituency Wise Detailed Results |work = West Bengal | publisher= Election Commission | access-date = 25 May 2014 }}</ref>
|-
|1971
|[[Jyotirmoy Basu]]
|[[Communist Party of India (Marxist)]]
|[[Amar Prosad Bandopadhyay]]
|[[Indian National Congress]]<ref name=loksabha1971>{{cite web| url = http://eci.nic.in/eci_main/StatisticalReports/LS_1971/Vol_I_LS71.pdf |title = General Elections, India, 1971 - Constituency Wise Detailed Results |work = West Bengal | publisher= Election Commission | access-date = 25 May 2014 }}</ref>
|-
|1977
|[[Jyotirmoy Basu]]
|[[Communist Party of India (Marxist)]]
|[[Biren Mahanti]]
|[[Indian National Congress]]<ref name=loksabha1977>{{cite web| url = http://eci.nic.in/eci_main/StatisticalReports/LS_1977/Vol_I_LS_77.pdf |title = General Elections, 1977 - Constituency Wise Detailed Results |work = West Bengal | publisher = Election Commission of India|access-date = 25 May 2014 }}</ref>
|-
|1980
|[[Jyotirmoy Basu]]
|[[Communist Party of India (Marxist)]]
|[[A K M Ishaque]]
|[[Indian National Congress]]<ref name =loksabha1980>{{cite web| url = http://eci.nic.in/eci_main/StatisticalReports/LS_1980/Vol_I_LS_80.pdf |title = General Elections, 1980 - Constituency Wise Detailed Results |work = West Bengal | publisher = Election Commission of India|access-date = 25 May 2014 }}</ref>
|-
|1984
|[[Amal Datta]]
|[[Communist Party of India (Marxist)]]
|[[Sudhendu Mundle]]
|[[Indian National Congress]]<ref name=loksabha1984>{{cite web| url =http://eci.nic.in/eci_main/StatisticalReports/LS_1984/Vol_I_LS_84.pdf |title = General Elections, 1984 - Constituency Wise Detailed Results |work = West Bengal | publisher = Election Commission of India|access-date = 25 May 2014 }}</ref>
|-
|1989
|[[Amal Datta]]
|[[Communist Party of India (Marxist)]]
|[[Maya Ghosh]]
|[[Indian National Congress]]<ref name=loksabha1989>{{cite web| url =http://eci.nic.in/eci_main/StatisticalReports/LS_1989/Vol_I_LS_89.pdf |title = General Elections, 1989 - Constituency Wise Detailed Results |work = West Bengal | publisher = Election Commission of India|access-date = 25 May 2014 }}</ref>
|-
|1991
|[[Amal Datta]]
|[[Communist Party of India (Marxist)]]
|[[Maya Ghosh]]
|[[Indian National Congress]]<ref name=loksabha1991>{{cite web| url = http://eci.nic.in/eci_main/StatisticalReports/LS_1991/VOL_I_91.pdf |title = General Elections, 1991 - Constituency Wise Detailed Results |work = West Bengal | publisher = Election Commission of India|access-date = 25 May 2014 }}</ref>
|-
|1996
|[[Samik Lahiri]]
|[[Communist Party of India (Marxist)]]
|[[Amjad Ali Sardar]]
|[[Indian National Congress]]<ref name=loksabha1996/>
|-
|1998
|[[Samik Lahiri]]
|[[Communist Party of India (Marxist)]]
|[[Kakoli Ghosh Dastidar]]
|[[All India Trinamool Congress]]<ref name=loksabha1998/>
|-
|1999
|[[Samik Lahiri]]
|[[Communist Party of India (Marxist)]]
|[[Amjad Ali Sardar]]
|[[All India Trinamool Congress]]<ref name=loksabha1999/>
|-
|2004
|[[Samik Lahiri]]
|[[Communist Party of India (Marxist)]]
|[[Saugata Roy]]
|[[All India Trinamool Congress]]<ref name=loksabha2004/>
|-
|}

==See also==
* [[Diamond Harbour]]
* [[List of constituencies of the Lok Sabha]]

== Notes ==
{{notelist}}

==References==
{{Reflist}}

==External links==
*[https://www.indiaelections2014.info/parliament/2019/states/west_bengal/diamond_harbour/lok_sabha_parliamentary_election_2019_results.html Diamond Harbour lok sabha constituency election 2019 result details]

{{South 24 Parganas}}
{{South 24 Parganas topics}}
{{Lok Sabha constituencies of West Bengal}}

{{Coord|22.1910091|N|88.1904741|E|display=title|region:IN-WB|format=dms}}

{{West Bengal elections}}

{{DEFAULTSORT:Diamond Harbour Lok Sabha constituency}}
[[Category:Lok Sabha constituencies in West Bengal]]
[[Category:Politics of South 24 Parganas district]]
[[Category:Diamond Harbour, India]]
[[Category:1952 establishments in India]]

Diamond Harbour Lok Sabha constituency - Revision history

TiaBurwell25 at 00:45, 7 May 2026