Harshavardhana (r. 606-647 CE) was a ruler of __________ dynasty.

Pushyabhuti

The correct answer is Option 4- Pushyabhuti

Harshavardhana was the last ruler of the Pushyabhuti dynasty, which ruled over much of northern India from the 6th to the 7th centuries CE. He was a Hindu who later embraced Mahayana Buddhism. He was known for his patronage of art, literature, and religion.

The Mughals ruled over India from the 16th to the 18th centuries CE. The Mauryas ruled over India from the 4th to the 2nd centuries BCE. The Guptas ruled over India from the 4th to the 6th centuries CE.