This poll will decide the fate of 142 candidates, including six women and many independents.
Political parties also expressed their happiness over the heavy turnout of voters and peaceful elections.
At some of the polling stations, technical trouble with electronic voting machines (EVM) disrupted the process for brief periods.
The main poll battle is between the ruling Congress and opposition coalition Mizoram Democratic Alliance, comprising Mizo National Front (MNF), Mizoram People's Conference and Maraland Democratic Front, all regional and local parties.
The Bharatiya Janata Party, which has little base in the state, Zoram Nationalist Party and the Nationalist Congress Party are also separately contesting the state elections, fielding candidates in many seats.
Of the 40 assembly seats, 39 are reserved for tribals. One seat is for the general category.
With a population of 10.91 lakh, Mizoram is the only state in India where women voters outnumber men by 9,806 in the total of 690,860. In all, there are 350,333 women voters against 340,527 males.
Altogether 1,126 polling stations were set up across the state to hold the elections. Mizoram shares borders with Myanmar (404 km) and Bangladesh (318 km).
