The first Iron case rocket was successfully used by which Indian King that forced britishers to dwell into the rocket technology

Tipu Sultan, the ruler of Mysore, was indeed the first Indian king to successfully use iron-cased rockets in warfare against the British in the 1780s and 1790s. His rocket corps was innovative and forced the British to develop their own rocket technology (leading to the Congreve rocket). Options A, C, and D are other Indian leaders who fought the British but did not use iron-cased rockets.