Sinhagad, Mountain fortress in Pune district, India

Sinhagad is a mountain fort in Pune district, Maharashtra state, India, rising on an elongated plateau above the surrounding plain. Stone pathways connect several gates, bastions and ruins of administrative buildings scattered across the summit area.

The site was established several centuries ago and changed rulers repeatedly before becoming part of the Maratha Empire in the 17th century. The battle of 1670 marked a turning point in regional power dynamics and gave the fort its present name.

The fort's name comes from the anecdote that Shivaji said "Gad ala, pan Sinha gela" (the fort is won, but the lion is lost) after Tanaji Malusare died taking it in 1670. Inside are the Kondhaneshwar Shiva temple, a Yadav-era shrine, and the Amruteshwar Bhairav temple, where the Bhairav image holds a demon's head.

The fort is accessible daily and offers two main routes to the summit, one vehicular road and a shorter trekking trail through forested sections. Early morning hours are most comfortable for tackling the steep sections in milder temperatures.

The Devtake tank behind the Tanaji Malusare memorial still supplies drinking water on the fort today. A lightning strike on 11 September 1751 hit the stone gunpowder store near the entrance gate, destroying the fadnis's house and killing everyone inside.