Ranthambore Fort (Hindi:????????) is one of the six forts included in the World Heritage Site inscription Hill Forts of Rajasthan. It is situated near the town of Sawai Madhopur and is a formidable fort having been a focal point of the historical developments of Rajasthan. The fort is known for the glory and valor of Hammir dev of the Chauhan dynasty.

The fort lies within the Ranthambore National Park, the former hunting grounds of the Maharajahs of Jaipur before Indian independence.

Its earlier name was Ranastambha (Hindi:????????) or Ranastambhapura (Hindi:???????????). It was associated with Jainism during the reign of Prithviraja I of Chauhan dynasty in the 12th century. Siddhasenasuri, who lived in the 12th century has included this place in the list of holy Jaina tirthas. In Mughal period a temple of Mallinatha was built in the fort.

The fortress of Ranthambore was founded in 944 by the Nagil Jats. The fortress commanded a strategic location, 700 feet above the surrounding plain. It is of historical importance to know about Nagil clan. Nagil people are descendants of Nagavanshi mahapurusha Nagavaloka (????????).

Raja Sajraj Veer Singh Nagil (880 to 935 AD) was the most famous ruler of this small Jat state who headed a small army of twenty thousand warriors including ten thousand cavalry to protect its kingdom from invaders. He was the first ruler of Ranthambore who developed and raised infrastructure to make this area suitable for defence.

The Buddhist Bharhut stupa are supposed to be established by the Maurya king Ashoka in the 3rd century BCE. The inscriptions here mention about Nagil clan. Pillars of Railing on N.W. Quadrant in Bharhut bears an inscription which reads as under:

Moragirihma N?gil?y? bhikhuniya d?nam thabho.
Meaning: ” Pillar-gift of the Nun Nagila of Moragiri.”