Bahujan Samaj Party president Mayawati was among the first political leaders to cast her vote in Lucknow.
Mayawati reached the polling booth in Mall Avenue at 8 a.m.
After casting her vote, she told reporters that she was confident that the BSP would repeat the 2007 performance and form a government on its own.
She said that the people were upset at the non-performance of the BJP and SP governments, especially on the law-and-order issue.
She said that the people wanted the BSP back in power because they had seen its past performances.