The correct answer is option 'A' - Jaitra Singh.

Explanation:
Jaitra Singh was the ruler of Mewar who changed the capital from Nagda to Chittor. Here is the detailed explanation:

1. Background:
Mewar, also known as the Kingdom of Mewar, was a princely state in present-day Rajasthan, India. It was ruled by the Sisodia dynasty, which claimed descent from the legendary ruler Bappa Rawal. Mewar had several capitals throughout its history, and one such capital was Nagda.

2. Jaitra Singh's Reign:
Jaitra Singh was a ruler of Mewar who ascended the throne in the 12th century. During his reign, he decided to change the capital of Mewar from Nagda to Chittor.

3. Reasons for Changing the Capital:
There could be various reasons why Jaitra Singh decided to shift the capital from Nagda to Chittor. Some of these reasons might include:
- Strategic Location: Chittor was situated on a hilltop, providing a natural advantage in terms of defense against invasions.
- Water Availability: Chittor had a reliable water supply, which was essential for the sustenance and growth of the kingdom.
- Expansion: Jaitra Singh might have envisioned Chittor as a more suitable location for the expansion of the kingdom and its administration.

4. Importance of Chittor:
Chittor, also known as Chittorgarh, was a prominent city in Mewar and played a significant role in the history of Rajasthan. It was known for its massive fort, which was considered one of the strongest fortresses in India. Chittor became a symbol of Rajput valor and sacrifice due to its numerous sieges and battles.

5. Legacy of Jaitra Singh:
Jaitra Singh's decision to change the capital to Chittor had a lasting impact on the history of Mewar. Chittor became the stronghold of the Sisodia dynasty and remained the capital of Mewar for centuries. It witnessed several historical events, including the famous siege by Alauddin Khilji in 1303 and the heroic act of Jauhar (mass self-immolation by women) in 1568.

In conclusion, Jaitra Singh, a ruler of Mewar, changed the capital from Nagda to Chittor. This decision had significant historical and strategic implications, and Chittor went on to become an iconic city in the history of Rajasthan.

A.. after bhutala war with iltutmish