Ambur is a town and municipality in Tirupathur district, Vellore region of Tamil Nadu, India. It is located on the banks of the Palar River between Chennai and Bangalore. Ambur has a sizeable leather industry, and is known for its spicy biryani and for the sweet, makkhenpeda. Ambur was the site of two major military actions in the 18th century. The first was the 1749 Battle of Ambur that opened the Second Carnatic War between the Arcot State and the Mughal Empire. In 1767, the siege of Ambur took place during the First Anglo-Mysore War, with local troops and a British force successfully resisting an attack by the Kingdom of Mysore and by the Hyderabad State.