The CPM on Thursday organised a march to the CBI office in Salt Lake to demand a faster probe into the RG Kar junior doctor’s murder and to “expose” the allegedly tacit understanding between the RSS and the Trinamool Congress.

The Left party has said the alleged RSS-TMC deal is to blame for the central investigative agency’s “inordinate delay” in unravelling the “larger conspiracy” behind the rape and murder of the junior doctor at RG Kar Medical College and Hospital on August 9.

Hundreds of CPM supporters and leaders, including Md Salim, Sujan Chakraborty, Ramchandra Dom and Minakshi Mukherjee, assembled at Ultadanga and marched to the CBI office at the CGO complex in Salt Lake. They raised slogans demanding justice for the doctor and questioning how long the CBI would take to nab the “masterminds in the case”.

The march was held on the day the CBI completed 100 days of its probe. The CBI took over the case on August 24 following an order from Calcutta High Court.

“Within a month of the RG Kar incident, RSS chief Mohan Bhagwat had said the Sangh Parivar would support whatever steps the Mamata Banerjee government took in the case. This was enough indication of an RSS-TMC understanding. Justice does get delayed when politics comes in the way of the probe. We have asked the CBI to speed up the probe but we also know that even after 500 days, they will not deliver justice,” said Minakshi Mukherjee, the state secretary of the CPM’s youth wing DYFI.

Minakshi, Salim, Dom and lawyer Sanjukta Sen met CBI officers and submitted a memorandum to them.

Mukherjee said the party was ready to cooperate with the investigation in whatever way possible, but the central agency should remember that any attempt to give leeway to the culprits would be opposed.

“Every day, women in this state are being brutalised. The probe must unearth the larger conspiracy and corruption in the health department that took the life of the doctor,” Mukherjee said.

Salim said like Kolkata Police, the CBI was also protecting the culprits.

“The CBI is doing what we charged the Kolkata Police with. They are trying to hide the actual culprits. But we will be vigilant. The CBI must not forget that if they fail to deliver, the streets will resonate with protests to claim justice for the victim,” Salim said.

Thursday’s rally, along with the tone and tenor of the leaders and the mood of party supporters, gave enough hints that the CPM would up its ante on the RG Kar issue.

“Why is the CBI taking so long to arrest the real culprits in the RG Kar incident? The CBI should immediately identify the culprits in the police, health department and the ruling party. The delay will eventually deny justice to the doctor,” said a CPM supporter.

TMC spokesperson Kunal Ghosh asked the CPM to state whether it wanted capital punishment for the main accused (Sanjay Roy) in the RG Kar case, while BJP leader Samik Bhattacharya saw the Left party’s rally against the CBI as a ploy to help Trinamool.