Besides other cases, the police will investigate if Tanwir had any role to play in the communal violence in Kasganj in which a 22-year-old man was shot dead. The victim, Chandan Gupta , was among the bikers who had participated in a "Tiranga Yatra" organised by the Vishwa Hindu Parishad and the Akhil Bharatiya Vidyarthi Parishad (ABVP) to mark Republic Day on January 26.

Various accounts suggest that the violence broke out when the "Yatra" -- featuring bikers and others holding the tricolour as well as saffron flags -- tried to pass through a Muslim-dominated area. Several gunshots are heard in the short clip apparently filmed from a rooftop around the time Chandan Gupta was shot dead.The violence escalated after Mr Gupta's death, several "revenge" attacks took place over the next few days. The police have filed seven FIRs or First Information Reports and over 100 people, including one of the main accused, have been arrested.