Who among the following has been appointed as Chief of ISRO in January 2025?

Dr. V. Narayanan

The correct answer is Option (4) → Dr. V. Narayanan

In January 2025, $\text{Dr. V. Narayanan}$ was appointed as the new Chief of ISRO (Indian Space Research Organisation), succeeding $\text{Dr. S. Somanath}$.

He is known for his significant contributions to India's space program, especially in the area of cryogenic propulsion, and has previously served as Director of the Liquid Propulsion Systems Centre (LPSC) of ISRO.