The poll result was ''unexpected'' and people of the state and the country has noticed how the BJP used its all-out effort to oust the Left Front government, Sarkar said in an interview to 'Ganashakti', the party's mouthpiece in West Bengal on Sunday.
The Centre, he said, had in fact created an ''economic blockade'' against the government by reducing the central allocations in MGNREGA and housing schemes, among others.
He said that the CPI-M would review the causes of its debacle in the just-concluded Assembly elections in the state after all the information are made available.
''It is observed that the BJP-Indigenous People's Front of Tripura (IPFT) (alliance) could manage to win the major portion of the anti-Left forces into their fold.
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He said, the CPI-M's movement for ideology and alternative principle would continue and never stop.
Sarkar claimed that the incidents of attack on Left workers and setting fire to the party offices has started coming in and added that the people who had voted for the BJP responding to their call for change perhaps did not want such atmosphere after the elections.