In this exclusive interview, Arun Kumar Tiwari reminisces the times spent with former President and Missile Man Dr APJ Abdul Kalam.  Arun Kumar Tiwari is an Indian missile scientist, author, and professor. He has been an aide of Dr APJ Abdul Kalam for almost 30 years and co-authored 5 books with him, including Wings of Fire, the autobiography of Dr. Kalam.   Tiwari developed India's first Titanium air bottle used in ‘Trishul’ and ‘Akash’ missiles and designed Airframes for both the missiles and India's first Coronary Stent with Cardiologist Dr. B Soma Raju well known as Kalam-Raju Stent. He is also credited for structuring and setting up India's first satellite-based telemedicine system.