After Anil Goswami, who had to resign from the post of home secretary for interfering in the arrest of Saradha scam accused, it is the turn of Trinamool Congress MP to quit parliament and the party.

The Trinamool Congress’s Rajya Sabha member Srinjoy Bose on Thursday said he was leaving the party and resigning from the Upper House of the Parliament with immediate effect.

“Politics is not my cup of tea,” Bose said a day after he was released on bail, adding he finally yielded to his mother and wife’s demand that he quit politics.

Bose spent 75 days in the custody of the Central Bureau of Investigation, following his arrest for his alleged links with Saradha Group.

But just an hour after the news of his resignation became public, party Member of Parliament Derek O'Brien said in a statement that "Srinjoy has been under tremendous pressure from the party in power at the Centre."

His comment seems to be aimed at the BJP which, according to Trinamool sources, was pressurising Bose to quit the party or face harsher interrogation by the Central Bureau of Investigation.

At the Trinamool Congress' core committee meeting in Kolkata on January 31, party chief and West Bengal Chief Minister Mamata Banerjee had mentioned that Bose was under pressure from the BJP.

She had also told the meeting that the party's all India general secretary and MP Mukul Roy "is under pressure from the BJP via the CBI to either split the party or go to jail." Roy had been questioned by the investigative agency over the scam for nearly five hours last week.

Meanwhile, the CBI is expected to challenge the conditional bail granted by the Alipore District and Sessions judge to Srinjoy Bose.

Bose has been granted bail under Section 420 of IPC and the CBI feels that this is not tenable since his arrest has been made under Sections 409 of IPC as well.

District and Session Judge's Court, Alipore Samaresh Prasad Chowdhury granted bail to Bose after imposing three conditions that he would not leave the country, he would not threaten witnesses and he would respond to CBI's summons, whenever served.