Purba Banglar Sarbahara Party (Bengali: পূর্ব বাংলার সর্বহারা পার্টি, Proletarian Party of East Bengal) is a communist party in Bangladesh. The party played a role in the independence struggle of the country. In the early 1970s it engaged in armed struggle supporting the new Bangladeshi state. Since then its political fortunes have dwindled, having suffered from several waves of internal divisions. The group remains active, and still carries out attacks against its opponents.