Q. Who among the following wrote Fathul Mujahidin?
Answer: Tipu Sultan
Notes: Fathul Mujahidin is the name of the rocket manual. Tipu is considered the father of rocket artillery in battle for his use of iron-cased rocket artillery in defeating the British Army in the 1792 battle at Srirangapatna. The British lost the battle, mainly due to the rocket artillery of about 2,000 rockets fired simultaneously at them.