
Kalam took Physics in college and went on to study Aeronautical Engineering from Madras Institute of Technology. Iyer later told Kalam to complete his basic education and then take up higher education in subjects related to flight science. On that day evening, he thought that his future study has to be with reference to something to do with flight.

The lesson left an indelible impression on Kalam. After the 25-minute-long lesson when none of the students, including Kalam, were unable to understand that concept, Iyer took the entire class to the beach to give a practical example.

One day, Iyer gave a lesson on how birds fly. Shri Siva Subramania Iyer When Kalam was in the 5th standard, he had a teacher Shri Siva Subramania Iyer.
