Biplobi Shainik Sangstha
| Organisation of Revolutionary Soldiers | |
|---|---|
| বিপ্লবী সৈনিক সংস্থা | |
| Also known as | BSS | 
| Founder | M. A. Jalil | 
| Leader | Abu Taher | 
| Foundation | January 1, 1973 | 
| Dissolved | November 25, 1975 | 
| Country | Bangladesh | 
| Motives | Socialist revolution | 
| Ideology | Revolutionary Socialism Left-wing nationalism Anti-Mujibism | 
| Political position | Left-wing to far-left | 
| Part of | JASAD | 
| Allies | JASAD | 
| Opponents | Government of Bangladesh | 
| Battles and wars | 1972–1975 Bangladesh insurgency | 
The Biplobi Shainik Sangstha (Bengali: বিপ্লবী সৈনিক সংস্থা, lit. 'Organisation of Revolutionary Soldiers') was a clandestine revolutionary socialist group of sepoy mutineers within the Bangladesh Army, active from 1973 to 1975. The BSS was formed by the vanguard socialist-revolutionary party Jatiya Samajtantrik Dal (JaSaD) and led by Maj. M.A. Jalil and Lt. Col. (retd.) Abu Taher. The BSS is known for staging the 7 November 1975 coup through the Sipahi–Janata Revolution, which would eventually make way for the rise of Lt. Gen. Ziaur Rahman in the country's politics.