New Delhi: In a sign of deepening strains with ally Trinamool, sulking West Bengal Minister Manoj Chakraborty, who dubbed Mamata Banerjee as dictator after she divested him of two of his portfolios, was allowed to quit her ministry by the Congress high command.

Chakraborty, a Minister of State, had shot off his resignation to Congress President Sonia Gandhi after Banerjee stripped him of two of his portfolios -- Parliamentary Affairs and Cottage and Small Scale Industries.

The Minister for Food Processing hit back terming Mamata as dictator and questioned her performance.

Chakraborty is a close associate of senior party MP Adhir Ranjan Choudhary and had been in forefront in opposing West Bengal government's move to change the name of Indira Bhavan.

The request of Chakraboty was forwarded to Gandhi on Thursday, who on Friday allowed him to resign from the Council of Ministers in West Bengal, sources said.

The development came on a day when Gandhi held deliberations with the party’s top brass including Prime Minister Manmohan Singh at the Congress Core Group meeting.s

The sources said that the minister is likely to put in his papers on Saturday.

A senior party leader speaking on condition of anonymity said that the party feels Chakraborty was "aggrieved" and "hurt" and his decision to quit the ministry was justified as he was not even sounded about being divested of his portfolio.

 The party leader also ruled out the possibility of any replacement of Chakraborty from Congress saying it would amount to accepting that the Minister had erred, which is not the case.

AICC in-charge for the state Shakeel Ahmed said the decision has been communicated to PCC chief Pradip Bhattacharya.

The decision of the Congress high command not to nominate any leader to replace Chakraborty is indicative of the growing anger within the party about the "words and deeds" of Mamata's party.

It also indicates the Congress leadership's clear message to Mamata that "humiliation" of partymen will not be accepted.

"We do not speak but that does not mean we are not hurt," said a party leader.

Asked whether the Congress has decided on a replacement for Chakraborty, Ahmed said, "That has not been decided. His replacement has not been decided."

Congress had seven Ministers- two Cabinet and five in MoS rank in the West Bengal Council of Ministers. With the resignation of Chakraborty, its strength will now be six.

Party spokesperson Abhishek Singhvi, who, initially claimed ignorance about the decision, however, said, "Obviously if that thing has happened, then there will be a replacement. Politics does not function in a vacuum."

He earlier said that the matter was between the high command and the minister and then between the latter and the Chief Minister.

The strain in Congress-Trinamool relations have come to fore recently after Banerjee's party joined the Opposition in the Rajya Sabha in opposing the Lokpal bill during the Winter Session.

It reached a flashpoint in last few weeks when Congress workers vehemently opposed the state government's move to change the name of Indira Bhavan after revolutionary poet Kazi Nazrul Islam.

For the last two three days, Congress was maintaining that the coalition dharma does not permit unilateralism and it takes both hands to clap.

Union Minister Jairam Ramesh had, sometime back, said in a rally that Congress has not taken VRS in West Bengal, indicating that the party would not give up its fight for space with Mamata Banerjee.