Tipu Sultan ( Urdu:ٹیپو سلطان, Kannada : ಟಿಪ್ಪು ಸುಲ್ತಾನ್ ) (20 November 1750 – 4 May 1799), also known as the Tiger of Mysore, Dipu Sultan and Tipu Sahib, was a ruler of the Kingdom of Mysore. He was the eldest son of Sultan Hyder Ali of Mysore. Tipu introduced a number of administrative innovations during his rule, including his coinage, a new Mauludi lunisolar calendar, and a new land revenue system which initiated the growth of Mysore silk industry.