Indira Gandhi Centre for Atomic research is situated in:

Correct option is D

The correct answer is (D) Kalpakkam.

Explanation:
The Indira Gandhi Centre for Atomic Research (IGCAR) is located in Kalpakkam, Tamil Nadu, India. It is one of India's premier nuclear research facilities.

Other options explanations:

• Indore: Known for its industrial and educational institutions but not IGCAR.
• Kolkata: Houses the Saha Institute of Nuclear Physics, not IGCAR.
• Mumbai: Location of the Bhabha Atomic Research Centre (BARC), not IGCAR.

Information booster:

• Indira Gandhi Centre for Atomic Research (IGCAR):
  • Established in 1971.
  • Focuses on nuclear power generation and fast breeder reactor technology.
  • Operates under the Department of Atomic Energy (DAE).
• Ministry:Department of Atomic Energy, under the Prime Minister of India in 2025.
• Kalpakkam: A hub for nuclear research, hosting both IGCAR and the Madras Atomic Power Station (MAPS).