Calcutta, March 11 :    Calcutta, March 11:  State water resources development minister and CPI leader Nandagopal Bhattacharjee today accused the CPM of betraying his party by denying it a seat in the Rajya Sabha from its quota. The minister pointed out that former Left Front chairman Sailen Dasgupta had promised the Rajya Sabha seat to the CPI. During the the Rajya Sabha election in 2000 also, the CPM had promised a Rajya Sabha seat to the CPI from its quota as part of Left Front's policy, but eventually backed out of its promise. 'The CPM's betrayal has hurt us. But we are not going to pull out of the ruling Left Front as it will help strengthen Opposition forces like the Trinamul Congress and the BJP,' said Bhattacharjee. He said the CPI had demanded a discussion with the CPM on the issue of seat-sharing for the Rajya Sabha elections but the latter did not agree. 'This is insulting for us as we are not ready to accept such treatment from the principal Front partner, CPM. Still, we will not quit the Front because we had joined the Front because of political compulsions, which are of utmost importance in the present-day situation,' he told reporters after the party's state executive meeting. Criticising the CPM for its big brother attitude, Bhattacharjee alleged: 'The CPM often neglects minor Front partners and does not consult them on major political issues. This tendency will weaken (the) Front in the coming days.' Asked whether his party would boycott the Rajya Sabha election in protest against the CPM's 'betrayal', Bhattacharjee said, 'We shall not take any decision, which will harm the unity of the Front and strengthen the hands of the Opposition Trinamul Congress and its allies.' He also made it clear that his party would vote for the Front nominees at the March 27 Rajya Sabha polls. In a related development, CPM nominees, Prasanta Chatterjee, Tarini Roy and Khabiruddin Ahmed today submitted their nominations to the state Assembly secretary. Meanwhile, CPM state secretary Anil Biswas today apprehended trouble tomorrow in such areas as Asansol, Bongaon in North 24-Parganas, and Swarupnagar in Nadia and some other pockets in the state. 'We have received reports from our party sources that VHP activists might try to foment communal tension in these areas tomorrow as (the) Shivaratri festival falls on the day. We shall organise rallies in these areas from tomorrow and continue till March 15 to thwart any move to disturb communal harmony in our state,' Biswas said. He also revealed that some people were collecting firearms, swords and bows and arrows and stockpiling them at home.