Violence in Bengal on counting day, BJP's Arambagh office set on fire

Reports of violence coming in from West Bengal on counting day, as Mamata Banerjee wins her third term as Bengal Chief Minister with a massive victory over the BJP.
Videos doing the rounds of social media show the BJP's local party office in Arambagh set ablze. There are no reports of any casualties so far.
Local BJP works allege a TMC hand behind the incident, however, TMC has denied any role.
Reports say, apart from Arambagh, violence has erupted also in Beliaghata area of Kolkata.