Gateway of India historical timeline

The arch's meaning changed as the political order that commissioned it ended and Mumbai reclaimed the waterfront as public space.

Chronology

1. 31 March 1911 The foundation stone is laid to commemorate the royal visit, before the final monument has been designed.
2. 1914 George Wittet's Indo-Saracenic design receives approval.
3. 1924 Construction is completed, creating a formal landing symbol at Apollo Bunder.
4. 28 February 1948 The last British troops to leave independent India pass through the Gateway in a ceremonial departure.
5. Late 20th century to present The plaza becomes one of Mumbai's busiest public waterfronts and a ferry departure zone.

• Official website
• Wikipedia