Taragarh Fort, Military fort in Ajmer, India.

Taragarh Fort is a fortress on a steep hillside above Ajmer, Rajasthan, originally called Ajaymeru Durg. A long, low wall of rough stone runs along a flat earthen ridge, with a rectangular flat-roofed stone building with small openings at its end; below, a weathered stone and brick wall rises from a rocky cliff covered with scrub. Three gateways lead in: Lakshmi Pol, Phuta Darwaza and Gagudi ki Phatak, most of them now in ruins, and the wall had 14 bastions, the largest being the 16th-century Bhim Burj. The fort overlooks the city and a lake in the valley.

Taragarh Fort was built by the Parmar Rajputs and repaired by Ajayaraja Chauhan; it was first called Ajaymeru Durg. In the late 15th century Prithviraj Sisodia of Mewar took it from governor Mallu Khan and renamed it Taragarh after his wife Tarabai. After the Battle of Khanwa it passed to Babur's Mughals and served as the seat of the Ajmer Subah, later controlled in practice by the Kachwahas of Amber.

The fort holds the dargah of Miran Saheb, killed in 1202 CE when Rajputs attacked while he and his men were at prayer. Emperor Jahangir, after taking Kandahar, built a marble cage (kathera) in the dargah of Meera Syed Hussain here in 1615. The name Taragarh honours Tarabai, wife of Prince Prithviraj Sisodia of Mewar, who took the fort from governor Mallu Khan.

The fort sits on a steep hillside above Ajmer, reached by a road and paths that climb past the cliff face; the three gateways, Lakshmi Pol, Phuta Darwaza and Gagudi ki Phatak, are largely ruined. Much of the route is unpaved and uneven, so sturdy footwear helps. The reservoirs inside once supplied the city with water during shortages.

The fort's tunnels once ran to every peak of the hill, according to the Urdu account, but they can no longer be entered. The largest bastion, the 16th-century Bhim Burj, once carried a cannon called Garbh Gunjam, 'Thunder from the Womb'.