Gandhi also welcomed first-time voters to take part in the electoral process.
"Voter exercising his right without fail is the sign of functional democracy. I welcome all my young friends who are casting their vote for first time in Karnataka," Gandhi said in a tweet in Kannada.
"I request people of Karnataka to celebrate this biggest festival of democracy in large numbers with fervour, and make it successful," he said.
Gandhi had made nine visits, each one spanning about three days, to the state as part of his 'Janashirvada Yatre'. He had addressed roadside meetings and rallies and taken part in road shows across the state in a customised bus.
Siddaramaiah tweeted, "Today people of Karnataka are standing in queues to create history and show the nation the way to liberal, progressive, peaceful and compassionate politics and governance. I thank them for their support and wish them well.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)