How did Mumbai get its name?

The name of the city, Mumbai is derived from patron deity the Mother Goddess Mumba Devi, worshipped by the earliest inhabitants the Kolis. The District Mumbai City is situated on the West coast of India between 18˚ 52′ and 19˚ 04′ North latitudes and 72˚47′ and 72˚54′ East longitudes.

According to Slate magazine, Bombay was renamed Mumbai because "they argued that 'Bombay' was a corrupted English version of 'Mumbai' and an unwanted legacy of British colonial rule." Presumably "they" are the people of Bombay. Slate also said "The push to rename Bombay was part of a larger movement to strengthen Marathi identity in the Maharashtra region."

The name Mumbai (Marathi: मुंबई) originated from Mumbā or Mahā-Ambā—the name of the patron Hindu goddess (kuladevata) Mumbadevi of the native Koli community—and from ā'ī, meaning "mother" in the Marathi language, which is the mother tongue of the Koli people and the official language of Maharashtra. According to certain accounts, the Koli community, which hails from Kathiawar and Central Gujarat, is believed to have introduced their deity Mumba from Kathiawar (Gujarat), where her worship continues to this day.

By the late 20th century, the city was referred to as Mumbai or Mambai in Marathi, Konkani, Gujarati, Kannada and Sindhi, and as Bambai in Hindi. The Government of India officially changed the English name to Mumbai in November 1995.