The Dindigul Fort or Dindigul Malai Kottai is a 17th-century hill fort, built by Madurai Nayak situated in the town of Dindigul in the state of Tamil Nadu in India. The fort was built by the Madurai Nayak king Muthu Krishnappa Nayak in 1605. In the 18th century the fort passed on to Kingdom of Mysore (Mysore Wodeyars. During the reign of Hyder Ali and Tipu Sultan the fort was of strategic importance. In 1799 it went to the control of the British East India Company during the Polygar Wars.