During the time of Aurangzeb, Dalel Singh defeated Magar Khan, the ruler of

Ramgarh
Rajmahal
Chai
Tori

The correct answer is: A. Ramgarh.

Dalal Singh was a general in the Mughal army who defeated Magar Khan, the ruler of Ramgarh, in 1660. This victory allowed the Mughals to extend their control over the region.

Ramgarh is a town in the Indian state of Jharkhand. It is located in the Ramgarh district, which is named after the town. The town is situated on the banks of the Damodar River. Ramgarh is a major industrial town, and is home to a number of steel mills and other factories.

Magar Khan was the ruler of Ramgarh in the 17th century. He was a powerful and influential ruler, and his kingdom was a major obstacle to the expansion of the Mughal Empire. In 1660, Dalel Singh, a general in the Mughal army, led an expedition to conquer Ramgarh. The Mughal army was victorious, and Magar Khan was killed in battle. This victory allowed the Mughals to extend their control over the region.

The other options are incorrect because they are not the names of towns or cities in India.