Watch: Mob Was 1,500-Strong, It Was Violent, Says Senior Delhi Cop

As South Delhi's upscale New Friends Colony area turned into a battleground between violent protesters opposing the new Citizenship (Amendment) Act and the police on Sunday evening, one of the videos widely shared on social media showed law enforcement personnel emptying jars into a vandalised bus. Several buses and two-wheelers were set on fire in the clashes and many on Twitter - including Delhi Deputy Chief Minister Manish Sisodia - floated a theory that the some members of the police may have been involved in the vandalism and arson themselves. The police, however, issued a strong denial.

Chinmoy Biswal, Deputy Commissioner of Police, South-East Delhi, who led the operation against protesters, rubbished Mr Sisodia's allegation as well. "Nothing can be farther from the truth," he told NDTV.