Harsha Vardhan : After the decline of Gupta empire, Vardhana Dynasty held its sway in northern India. Of all the kings of the dynasty Harsha Vardhana (606-647), the son of King Prabhakar Vardhan who ascended the throne of Thaneshwar in 606 A.D. was most important.
Harsha having died heirless, his empire disintegrated. It caused the emergence of petty warring Rajput states. Of them, Prithviraj Chauhan (1172-1191) the ruler of Delhi was important. His defeat at the hands of Mohammad Ghori brought to an end the saga of Hindu rule and ushered in an era of Muslim rule.