Question: What ruler in the Indian subcontinent sent his general Malik Kafur on an expedition to Warangal?
Sentence (from "Siege of Warangal, 1310"): After a month-long siege, the Kakatiya ruler Prataparudra decided to negotiate a truce, and surrendered a huge amount of wealth to the invaders, besides promising to send annual tributes to Delhi.
Relevant evidence: No