The Battle of Sonepat was fought between Sikhs and Mughal Empire in 1709.
Background and Battle
In 1708, Banda Singh Bahadur became the leader of Sikh army and he was sent to Punjab to fight against Mughal Empire. Banda, on his expedition, assembled and marched to Sonipat attacked the town and threw an open challenge to Mughal Empire . The faujdar was utterly unprepared but was routed and was defeated and the winners looted the state treasury.
References
Battle of Sonepat Wikipedia(Text) CC BY-SA