Who among the following was greatest ruler of Pratihara Dynasty?

Mihir Bhoja

The correct answer is Option 3- Mihir Bhoja

Mihir Bhoja was the greatest ruler of the Pratihara Dynasty. He ruled from 836 to 885 CE and is considered to be one of the most powerful rulers in Indian history. He expanded the Pratihara empire to its greatest extent, and he defeated many of his rivals, including the Palas and the Rashtrakutas. He was also a great patron of art and literature, and he built many temples and other monuments.

Nagabhata was the founder of the Pratihara Dynasty. He ruled from 730 to 760 CE.

Ramabhadra was a Pratihara ruler who ruled from 885 to 910 CE.

Samantasena was a Pratihara ruler who ruled from 949 to 971 CE.