Belapur Fort is a citadel close to the township of Belapur in Navi Mumbai, Maharashtra, India. The citadel changed into constructed by using the Siddis of Janjira. It was later conquered by the Portuguese, after which Marathas. In the early 19th century, the castle turned into captured by means of the British. After the British gained supremacy within the vicinity, with the expansion of the Bombay Presidency, the strategic significance of the fortress declined, and it fell into disuse. Built in 1560–1570 by using the Siddis, after they wrested control of the region from the Portuguese, it is positioned atop a hillock, near the mouth of the Panvel Creek.
In 1682, the fort turned into recaptured by using the Portuguese, who had managed to annex the regions controlled by means of the Siddis, near Belapur. In 1733, the Marathas, led via Chimaji Appa, wrested control of the citadel from the Portuguese. He had made a vow that if it had been to be correctly recaptured from the Portuguese, he might location a garland of beli leaves in a close-by Amruthaishwar temple, and after the victory the citadel changed into christened as Belapur Fort. The Marathas ruled the place till 23 June 1817, whilst it was captured with the aid of Captain Charles Gray of the British East India Company. The British partially destroyed the citadel below their coverage of razing any Maratha stronghold inside the region.