HSRA in which shaheed Bhagat singh was a member

 Hindustan    socialist Republican  organisation, ( HSRA) earlier it was known as  Hindustan republican army  founded by Ramprasad Bismil Sachindranath Bakshi SB  Sanyal,  and  Jc chatterjee. Earlier to it was called  Hindustan Republican association i.e HRA. Bhagat   singh was a very active member of HSRA