Jaynagar is a Legislative Assembly constituency located in the South 24 Parganas district and falls under the Jaynagar (Lok Sabha constituency). Biswanath Das of TMC is the sitting MLA in Jaynagar.

This Vidhan Sabha constituency is composed of Jaynagar Majilpur Municipality Baharu Kshetra, Harinarayanpur, Dakshin Barasat, Rajpur Korabag, Sripur and Uttar Durgapur gram panchayats of Jaynagar I community development block, Beladurganagar, Gordoani, Phutigoda, Mayahauri, Mayda and Sahajadapur gram panchayats of Jaynagar II community development block.

Here are a few details about the Jaynagar assembly seat

Name of the assembly constituency, district: Jaynagar, South 24 Parganas.

Lok Sabha constituency: Jaynagar

2016 candidates: Biswanath Das (TMC), Sujit Patwari Haldar (INC), Utpal Kumar Mandal (BJP), Rajendra Naskar (BSP), Tarun Kanti Naskar (SUCI(C)), Tarun Naskar (INC)

2020 candidates: NA

Sitting MLA, party: Biswanath Das (TMC)

Winning margin in 2016: 15051

Runner up name, party: Sujit Patwari Haldar (INC)

Number of voters in 2016: 178472

Percentage of votes polled in 2016: 84.48%

Number of women voters in 2016: 83591

Number of polling booths in 2016: 869