Which one of the famous buildings of New Delhi has been converted into Prime Ministers' Museum?

1. A

   Vigyan Bhavan

   Vigyan Bhavan claims to be the building converted into the Prime Ministers' Museum, but this large convention center continues to host major government and international conferences rather than serving as a prime ministerial memorial.

2. B

   India Habitat Centre

   India Habitat Centre claims to be the designated site, but it functions as an autonomous institution promoting habitat and environmental building rather than housing the official museum dedicated to India's prime ministers.

3. C

   Teen Murti Bhavan

   Teen Murti Bhavan claims that the former official residence of India's first Prime Minister, Jawaharlal Nehru, was converted into the Prime Ministers' Museum, which is the correct key since the complex now honors all Indian prime ministers.

4. D

   Talkatora Stadium

   Talkatora Stadium claims to be the converted landmark, but it remains a prominent indoor sports stadium used for athletic events, martial arts, and political rallies instead of a presidential or ministerial museum.

Summary. Official key is (c) Teen Murti Bhavan. This historic estate previously served as the official residence of Jawaharlal Nehru for sixteen years after India gained independence. It was subsequently transformed into a comprehensive museum showcasing the lives and legacies of all Indian prime ministers. The other options such as Vigyan Bhavan and Talkatora Stadium serve entirely different civic and sporting functions. Therefore, only option (c) correctly identifies the transformed building.