On which hill the Rastrapati Bhavan is situated in Delhi ?

The correct answer is (c). Rashtrapati Bhavan is situated on Raisina Hill in Delhi. Raisina Hill is one of the seven hills of Delhi. It is located in the central part of the city and is home to many important government buildings, including the Rashtrapati Bhavan, the Parliament House, and the Supreme Court of India.

The other options are incorrect. Vindhya Hill is a mountain range in central India. Southern Hill is not a real place. None of these is a hill in Delhi.