The ministry has decided to deploy central forces at the official and residential premises of the Central Bureau of Investigation (CBI) in West Bengal and the MHA is now 'closely monitoring the situation', they said.
Singh called up the governor to be apprised of the facts of the 'unfortunate and unprecedented situation of CBI officers being manhandled, detained, intimidated and obstructed'.
Tripathi told Singh that he had summoned the Chief Secretary and Director General of Police (DGP), asking them to take immediate action to resolve the situation.
Reports also said that the residence of CBI Joint Director was surrounded by Kolkata police.
Also read: CBI vs Kolkata police: The battle so far