🏰 Sion Hillock Fort

The Sion Hillock Fort is a fort in Mumbai (Bombay), India. It was built under the regime of the English East India Company, between 1669 and 1677, atop a conical hillock when Gerard Aungier was the Governor of Bombay. It was notified in 1925 as a Grade I Heritage structure. When it was built, the fort marked the boundary between British-held Parel island and the Portuguese held Salsette Island that lay to the north across the creek.