Speaking at a seminar held in memory of Marxist stalwart E M S Namboodiripad here, Karat said there had also been alienation of sections of people from the Left and it would be introspected in the coming days.
"At the all-India level, politics and political line the Left pursued had not been able to attract sections of people...There had been certain degree of alienation of people from the Left," he said.
Despite "movements and struggles" launched to highlight the grievances of masses, the Left failed to rally working class including peasants, agricultural workers and labourers in unorganised sectors under its banner, he said.