Senior Congress leader and former Chief Minister Siddaramaiah on Wednesday filed nomination from Varuna constituency in this district, for the May 10 Karnataka Assembly polls.
The Leader of Opposition in the Assembly was accompanied by former Minister H C Mahadevappa and Congress leaders.
Siddaramaiah's son Dr Yathindra Siddaramaiah is the sitting Congress MLA from Varuna.
The 75-year-old, eight-time MLA, had earlier won twice from Varuna, and went on to become the Leader of Opposition after winning from here in 2008, and then became Chief Minister after 2013 Assembly polls.
The Congress legislature party leader offered prayers to his family deity Siddarameshwara at the temple in his native village of Siddaramanahundi, and also visited Sri Rama temple there, and held a massive roadshow before filing the nomination.