Step 1: The Father of Indian Missile Technology.
Dr. A.P.J. Abdul Kalam, known as the "Missile Man of India," played a pivotal role in the development of India's missile programs, including the successful launch of ballistic missiles.
Step 2: Conclusion.
Thus, the father of Indian Missile Technology is Dr. A.P.J. Abdul Kalam.
Final Answer: Dr. A.P.J. Abdul Kalam.