Ranthambhor was

A Mughal palace
A Rajput fort
Capital of the khaljis
A Buddist pilgrimage centre

The correct answer is: A Rajput fort.

Ranthambhor Fort is a 13th-century fort located in the Sawai Madhopur district of Rajasthan, India. It is one of the largest forts in India and was once the capital of the Mewar kingdom. The fort is situated on a hilltop and is surrounded by a moat. It has several palaces, temples, and other buildings. The fort is a popular tourist destination and is known for its wildlife, including tigers.

The other options are incorrect because:

  • A Mughal palace is a palace built by the Mughal emperors. The Mughal Empire was an Islamic empire that ruled over much of India from the 16th to the 18th centuries. Mughal palaces are characterized by their intricate architecture and use of marble and other precious materials.
  • The capital of the Khaljis was Delhi. The Khalji dynasty was a Muslim dynasty that ruled over the Delhi Sultanate from 1290 to 1320. The capital of the Khalji dynasty was Delhi, which is now the capital of India.
  • A Buddhist pilgrimage centre is a place that Buddhists visit to worship and pray. Buddhist pilgrimage centres are often located at sites where important events in the life of the Buddha took place.