The Battle of Karnal, was a decisive victory for Nader Shah of Iran, during his invasion of Mughal dynasty of India. Nader's forces defeated the army of Muhammad Shah within three hours, despite being heavily outnumbered (six-to-one), paving the way for the Persian sack of Delhi. The engagement is considered the crowning jewel in Nader's military career as well as a tactical masterpiece. The battle took place near Karnal, 110 kilometres (68 mi) north of Delhi, India.