During the present time in an interview with Shahrukh Khan (Hindi and English); Suriya (Tamil) through a television channel, Nambi walks through the events leading to his rise as an eminent engineer to an alleged espionage charges, physical and mental cruelty against him.
Nambi starts with his experiences at the "Thumba Equatorial Rocket Launching Station", where he saves A. P. J. Abdul Kalam, one of the team members from a major injury during an experiment. In 1969, he is accepted into Princeton University, USA.
Nambi successfully completes his MSE program in chemical rocket propulsion under professor Luigi Crocco (Vincent Riotta) who recommends him for the NASA fellowship. However, after a brief stint at NASA with Barry Amaldev (Sriram Parthasarathy), he is offered a generous paycheck and other allowances. He rejects it and returns to India.