Hii Kartikey Maddheshiya..

Do BE in mechanical/electrical/electronics/ chemical engineering. Then apply for OCES course in BARC (Bhabha Atomic Research Centre). Alternatively, you may also join NPCIL (Nuclear Power Corporation of India).

The department of Atomic Energy conducts exam called OCES/DGFS. The selection process is in two stages. First is through written exam. After clearing the written exam cut-off, you will be called for the interview. On selection, you have to join the BARC training school where, you will be trained for the subjects relevant to the nuclear engineering/science. Generally, the training school period is one year. On successful completion of training school (where you have to score more than 50%) you will be given choice to work at one of the DAE research institute based on your performance at the training school and available vacancies at the Department. Finally, you would be designated as scientific officer-C.

Hope this helps you. All the best.