The Congress has issued a show - cause notice to its Tripura unit leader Sudip Roy Barman, days after he resigned as the Congress Legislature Party (CLP) leader to protest the party's alliance with the Left Front in West Bengal.
The party has warned Barman of disciplinary action if he failed to explain his position properly within a fortnight.
Congress general secretary V. Narayanasamy in the show - cause notice to Barman said: "If you have any views on the Congress having an understanding with the Communist Party of India - Marxist in Bengal, you could have expressed your views to the Congress president personally. "
Narayanasamy, who is in charge of the party affairs in north - eastern states, told Barman that by criticising the party's alliance with ten Left Front through the media, he deliberately acted in a way calculated to lower the prestige of the Congress and carry out propaganda against the party leadership.
Barman, who is the opposition leader in the Tripura assembly, on Thursday resigned as Congress Legislature Party (CLP) leader in the assembly, protesting his party's tie - up with the Left Front n West Bengal.
In his resignation letter to Congress president Sonia Gandhi, he said the alliance would prove "harmful" to the Congress.
On Friday, four more Congress leaders quit party positions on the issue. They are Tripura Congress working president Ashish Saha, state Youth Congress president Sushanta Chowdhury, West Tripura Lok Sabha constituency Youth Congress president Viki Prasad, and East Tripura Lok Sabha constituency Youth Congress chief Rantu Deb.
Meanwhile, Tripura Congress president Birajit Sinha and some others party leaders have said they would abide by central leadership's decision on the alliance with the Left parties.
"We will abide by central leadership's decision on the issue. Congress leaders' resignations are unfortunate, " said Sinha, a sitting lawmaker and former minister of Tripura.
Informed sources said a few other Congress leaders close to Barman and Saha might quit party posts either to form a new party or join the Trinamool Congress of West Bengal Chief Minister Mamata Banerjee in Tripura.