Poonia left Govan in Glasgow for a new life with his family in the Midlands at the age of 12 months but made his ODI debut for Scotland against Ireland in 2006.
He was then part of the World Cricket League squad which secured a place at the Twenty20 World Championships by finishing as runners-up in Kenya, while also finding a place in the 2007 World Cup squad.
He first came to prominence in 2006 when scoring freely in the second XI at Edgbaston which prompted a first team position and he celebrated by hitting 59 on his debut in the Cheltenham & Gloucester Trophy.
However, he was not chosen by Warwickshire for a single first-team game in 2007.
He fared better in 2008 when he played 10 championship matches and scored one half-century. He played one game in each of the limited-overs competitions.