He has represented India in various field hockey tournaments internationally including the 1996 Summer Olympics in Atlanta, Georgia where he was one of the highest goal scorers for the Indian hockey team.
He has represented India 118 times in International field hockey tournaments across the world.
Because of his various achievements in domestic and international hockey, Gavin is a part of the hall of fame of the Mumbai Hockey Association.
In 2007 Gavin coached the Jr National hockey team in a miniaturised version of the game. This was a six-a-side hockey competition that was a part of the Indoor Asian Games held in Macau, China from 26 October – 3 November 2007.
In 2015, Gavin organised a franchised based Rink Hockey tournament called the Mumbai Rink Hockey League (MRHL) at Malad Gymkhana. The tournament ran from December 1–5, 2015. It was won by the Poisar Pirates and was hailed as success in the media.
- "Poisar Pirates emerge champions in the Mumbai Rink Hockey League". 2015-12-07. Retrieved 2016-08-19.
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