... https://www.youtube.com/watch?v=Gzufl7Wk9ZY

21/10/2018 Sunday Tulapur has great significance in Maratha history. Chhattrapati Sambhaji was brought here at Tulapur for torture and execution after his capture by Mogul forces. Sambhaji Maharaj was originally captured at a different place in south called Sangameshwar, a renowned Hindu holy place in Ratnagiri, some 40 miles west of Shrirangpur. Sangameshwar temple at Tulapur, therefore, must not be confused with the place called Sangameshwar. Sambhaji recently visted Shrirangpur, his in-law's place, to resolve a family dispute before arriving at Sangameshwar. Ganoji Shirke led Sheikh Nizam Hyderbadi (later known as Muqarrab Khan, a title bestowed by Aurangzeb) through dense and inaccessible Sayadari jungles via Ambay ghat to ambush and arrest Sambhaji[2]. Sambhaji could have easily escaped, with the early warning of the arrival of Mogul forces by his spies. Sambhaji also had better horses to outrun the enemies forces who were exhausted encroaching from difficult hills and passages of Sayadari. Some of his forces though safely retreated to Raigad on his advise. However, it is unknown why he stayed and fought with such a small force. It is wrongly mentioned in some Mogul records that Sambhaji was womanizing and merrying at Sangameshwar, a place with more than 360 ancient Hindu temples. Sambhaji was a great devout of Lord Shiva and was paying his respects at the holiest place. The false propaganda was to malign him for political gains by his enemies. When humiliated before Aurangzeb, Sambhaji was singing praises of Lord Shiva, thus affirming the fact that his presence at the holy place was for religious purposes only. He throughly fell in trance with Lord Shiva before capture, not very uncommon among devotees visiting Sangameshwar for pilgrimage. ... https://www.youtube.com/watch?v=L13Gvpl5DcM

It is unclear when the festival started, it became a major social and public event with sponsorship of Chatrapati Shivaji Maharaj after Mughal-Maratha wars, and again in the 19th century after public appeal by Indian freedom fighter Lokmanya Tilak, who championed it as a means to circumvent the colonial British government ban on Hindu gatherings through its anti-public assembly legislation in 1892. ... https://www.youtube.com/watch?v=GNy4ObLPWa4

... https://www.youtube.com/watch?v=Wm18D5GTda0