Over eight million voters, including 3.7 million women voters, are expected to decide the fate of 81 candidates who are in the fray in Thursday's poll.
A maximum of 22 candidates are contesting from Tonk-Sawai Madhopur constituency and the lowest of 12 from Bharatpur.
India's former cricket captain Mohammad Azharuddin and Jitendra Singh of the Congress and former director general of police Harish Meena and Mahant Chandnath of the BJP, besides Kirodi Lal Meena of the National People's Party are some of the main contestants.
In the 2009 elections, the Congress had won 20 of the 25 Lok Sabha seats from the state, BJP four and independent one.
