 Roy is known for fighting against alleged state atrocities, where victims —often among India's poorest citizens— report extrajudicial killings, custodial death, rape, mysterious disappearances, and police torture.Roy documented 118 cases in 2006, 469 in 2007, 210 in 2008[2].At present, he is the National Convener of the Programme Against Custodial Torture and Impunity (PACTI) of India and is the Secretary of MASUM; the convening organization of South-Asian Network against Torture and Impunity (SANTI).