Former Maharashtra home minister Anil Deshmukh on Tuesday alleged a "very suspicious" role of ex-Mumbai police commissioner Param Bir Singh in the case related to the placing of an explosives-laden SUV near Mukesh Ambani's residence in Mumbai.

The NCP leader said Singh had made false corruption allegations against him out of revenge which prompted him to move the Bombay High Court for justice. Deshmukh said officers from the police department and a few businessmen have levelled allegations of extortion and corruption against Singh, who is now Director General of Maharashtra Home Guard.