 Whilst in the British Army, Maj Dewan served in Hong Kong, Brunei, Cyprus, Belize, Nepal and United Kingdom.Dewan joined the British Army as a regular soldier and rose the rank of a Major, the highest for a Gurkha Officer and retired in 2002.After retiring from the British Armed forces, Dewan served in the British Civil services for eleven years before spearheading the energy company Gnergy as a CEO since 2013.