West Bengal Chief Minister Mamata Banerjee has been made a party in a petition by Central Bureau of Investigation (CBI) before the Calcutta High Court, seeking transfer of the Narada sting operation case filed on charge of graft by two senior TMC ministers and a key leader of the party.

Besides Mamata, the probe agency has also made West Bengal Law Minister Moloy Ghatak and Trinamool Congress lawmaker-lawyer Kalyan Banerjee a party in its petition before the High Court's two-member bench headed by acting Chief Justice Rajesh Bindal and Justice Arijit Banerjee, reports our New Delhi correspondent.

The bench will also hear petitions -- later today -- by ministers Subrata Mukherjee and Firhad Hakim, TMC legislator Madan Mitra and ex-Kolkata Mayor Sovan Chatterjee for recall of its order, staying the bail granted by a CBI court in connection with their arrest in the Narada case.

Representing the CBI, Solicitor General of India Tushar Mehta had on Monday evening told the High Court bench that an extraordinary situation had evolved, with the Chief Minister of the state sitting outside the office of CBI at Nizam Palace in Kolkata.

CBI also claimed that the Law Minister of West Bengal was present in court, where the accused were to be presented, along with a mob.

The probe agency said a number of followers of the arrested political leaders laid a siege to the CBI office in Nizam Palace area and did not allow its officers to move out to enable them to produce the accused in court.

They were produced before the special CBI court through the virtual mode on Monday.

Bengal Ministers Firhad Hakim and Subrata Mukherjee, Trinamool MLA Madan Mitra and Sovan Chatterjee were arrested in the Narada case on Monday after Bengal Governor Jagdip Dhankar gave clearance for their prosecution in the Narada case. 

Soon after the arrests, a huge crowd of Trinamool workers had gathered outside the CBI's Kolkata office and the Chief Minister, who had gone there, had held a dharna at the spot.

The Chief Minister, the CBI said, had remained present outside the CBI office "along with a well-engineered crowd of thousands of miscreants and after ensuring media presence".

This, the agency said in its petition, was "part of the larger and well thought of design to terrorise the investigating agency and preventing it from discharging its statutory functions freely and fearlessly".

In the circumstances, asking for their custody and their movement would have led to serious law and order problem, the agency said.

CBI, which sought transfer of the case out of the state, has asked that the four accused who were arrested earlier this week and are now in jail, be placed in police custody.