Shri Karneshwar Mahadev Temple is a well-known Hindu temple dedicated to Lord Shiva and holds strong religious importance in Karnal. The temple is believed to be associated with Karna, the legendary warrior from the Mahabharata, from whom the city of Karnal is said to have derived its name. Devotees visit the temple regularly to offer prayers, especially on Mondays and during the holy festival of Mahashivratri, when special rituals and celebrations take place.