The correct answer is Chittor.

The Revolt of 1857, also known as the Indian Rebellion of 1857 or the Sepoy Mutiny, was a major uprising in India against the rule of the British East India Company. The revolt began in Meerut on May 10, 1857, and spread to other parts of northern and central India.

The revolt was not uniform in its intensity or its spread. Some areas were more affected than others. The following territories were major centers of the revolt:

Delhi

Lucknow

Jhansi

Kanpur

Bareilly

Gwalior

Awadh

Bundelkhand

Chittor was not affected by the revolt. Chittor is a city in Rajasthan, India. It was an important Hindu stronghold in the 16th and 17th centuries, but it was conquered by the Mughals in 1568. The city was never ruled by the British East India Company, so it was not affected by the Revolt of 1857.

The other options are incorrect. Jhansi, Jagdishpur, and Lucknow were all major centers of the revolt.