Chadha immigrated to Canada in 1973 from India to study business administration. He remained and founded Balcorp in 1976, building it into a $50 million concern with offices in Montreal, New Delhi and Mumbai. His international trading company has varied interests that include agricultural food products, processed foods, forestry products, and minerals.
In 2003, Chadha was appointed by Prime Minister Jean Chrétien to the Security Intelligence Review Committee as well as to the Queen's Privy Council for Canada.