Sion (/ˈsaːjən/; IAST: Śīv [ʃiːʋ]) is a neighbourhood of Mumbai. In the 17th century the village formed the boundary between Mumbai and Salsette Island. The British named it marking the end of the city. The name remained even after Mumbai was joined to the Salsette and extended up to Mulund. One of the local historical places in Sion is a hilltop garden commonly known as Sion Fort or Sheevon Killa in the Marathi language. From Wikipedia
