Q. In which year Pratap Rudradeva ( Kakatiya ruler of Warangal) was defeated by Allauddin Khilji's army?
Answer: 1310 AD
Notes: In 1310 AD, Pratap Rudradeva ( Kakatiya ruler of Warangal) was defeated by Allauddin Khilji's army. After the war, the Koh-i-Noor diamond passed from Kakatiya ownership to that of Alauddin Khilji, along with 20,000 horses and 100 elephants.

4