Homi Bhabha Prize is given for the special contribution in which of the following fields ?

The correct answer is A, Theoretical Physics. The Homi Bhabha Prize recognises special contribution in theoretical physics, the field Bhabha himself worked in. His best-known theoretical work includes the Bhabha scattering process in quantum electrodynamics and his studies of cosmic-ray showers.

• B (Nuclear Energy): Bhabha is the architect of India's nuclear programme and the Atomic Energy Commission, which is why this option tempts aspirants. But the prize is tied to theoretical contribution, not to nuclear engineering or energy policy.
• C (Laser Physics): Laser research was not the field the prize was instituted for, so this is a distractor built on the broader idea of Indian physics institutions.
• D (Space Research): Space research is associated with Vikram Sarabhai and ISRO, not with Bhabha or this prize.

Connect this to the Mains angle on Indian science institutions: Bhabha's legacy spans TIFR, BARC and the AEC, and questions often test whether you can separate the institution he built from the award named after him.

Trap: Choosing B because Bhabha is so strongly identified with nuclear energy. Check what the award specifically recognises before linking it to the person's best-known institutional work.