, ▁under ▁the ▁name ▁Democratic ▁Social ist ▁Party ▁( P rab od h ▁Ch andra ). The ▁party ▁has ▁influ ences ▁in ▁parts ▁of ▁East ▁Mid nap ore ▁and ▁West ▁Mid nap ore . ▁ ▁D SP ▁has ▁tried ▁to ▁contact ▁the ▁Social ist ▁International , ▁but ▁have ▁been ▁denied ▁membership ▁on ▁the ▁grounds ▁that ▁they ▁are ▁a ▁regional ▁party . ▁ ▁D SP ▁has ▁won ▁the ▁P ing la ▁constitu ency ▁seat ▁in ▁the ▁ 2 0 1 1 ▁assembly ▁poll ▁in ▁West ▁Beng al ▁as ▁party ' s ▁candidate ▁Prof . ▁P rab od h ▁Sin ha ▁won ▁the ▁seat ▁as ▁Left ▁Front ▁candidate . ▁Party ' s ▁other ▁candidate ▁Prof . ▁Hr ish ik esh ▁Par ia ▁lost ▁the ▁E gra ▁seat ▁in ▁East ▁Mid nap ore . ▁D SP ▁has ▁a ▁z illa ▁parish ad ▁seat ▁in ▁East ▁Mid nap ore ▁district . ▁It ▁has ▁a ▁municipal ▁seat ▁in ▁the ▁E gra ▁municipality ▁as ▁of ▁ 2 0 0 9 ▁municipal ▁pol ls . ▁In ▁ 2 0 1 0 ▁Kol k ata ▁Municipal ▁pol ls , ▁the ▁party ▁was ▁all otted ▁ 2 ▁seats ▁to ▁contest ▁as ▁a ▁L F ▁partner ▁in ▁Ward ▁N os . ▁ 4 5 ▁& ▁ 7 2 ▁respectively . ▁ ▁It ▁lost ▁both ▁of ▁them . ▁It ▁has ▁won ▁a ▁Z illa ▁Par ish ad ▁seat ▁in ▁East ▁Mid nap ore ▁in ▁ 2 0 0 8 ▁pan ch ay et ▁pol ls . ▁The ▁party ▁bel ieves ▁in ▁the ▁ide als