Polling is being held in the seven civic bodies of Darjeeling, Kurseong, Kalimpong, Mirik Notified Area Authority in the Hills besides Domkal in Murshidabad, Pujali in South 24-Parganas, and Raiganj in North Dinajpur.
Election in Darjeeling district, will witness a straight fight between the TMC and GNLF alliance, and Gorkha Janamukti Morcha (GJM)-BJP alliance.
Today's election will decide who will rule in the hills, which has been a stronghold of GJM for the last 10 years. The GJM has accused TMC of poaching on its leaders and spreading lies and canards against it.
"TMC is trying to undermine the cause of Gorkhaland that we have been fighting for. TMC has been spreading lies and canards about GJM that we have done nothing for the development of the hills. The divisive politics of TMC will not work in the hills," GJM chief Bimal Gurung has said during election campaign.
State minister Aroop Biswas, who is in charge of the hills, has dismissed the GJM's charge.
"The allegations are completely baseless. The fact is GJM has been running a dictatorship in the hills and the people have started revolting against it. The people in the hills have accepted Mamata Banerjee as their undisputed leader and that is why GJM is levelling those wild allegations," Mr Biswas told PTI.
Election in Domkal is likely to witness a fight between TMC and Congress-CPI(M) alliance, whereas in Pujali and Raiganj, TMC is likely to face challenge from BJP as well apart from CPI(M) and Congress.
"The communal politics of BJP and the political opportunism of Congress and CPI(M) alliance will be defeated by the people of Bengal. The people are with us and it will be proved again," said TMC secretary general Partha Chatterjee to PTI.
BJP state president Dilip Ghosh said if elections were held in a "free and fair" manner, his party would emerge victorious in all the three municipalities.
"We doubt whether elections will be free and fair. The state police which is under the state government cannot ensure free and fair polls," Mr Ghosh alleged.
A delegation of Left and Congress leaders had met the State Election Commissioner on Friday demanding holding of free and fair election today.