Final answer:
The Rajputs were the Hindu warriors who resisted the Muslim invasions led by Mahmud and his successors in northern India.
Step-by-step explanation:
The Hindu warriors who led the resistance against the advances of Mahmud and his successors into northern India were the Rajputs. These fierce warriors were known for their bravery and martial traditions. In the twelfth century, Muhammad of Ghur faced Rajputs in one of the most violent engagements of his career when he established the Delhi Sultanate. The Rajputs fiercely defended their kingdoms against various Muslim invasions, establishing themselves as legendary fighters in Indian history.