Kular was born to a Sikh family in Punjab, and received a medical degree from Guru Nanak Dev University.
He moved to Canada in 1974, and completed two years of residency training in paediatrics at the IWK Health Centreat Dalhousie University in Nova Scotia.
He then worked for two years at the Canadian Armed Forces Hospital in Halifax, Nova Scotia before starting a family practice in Campbellton, New Brunswick in 1978.
In 1986, Kular founded a family and sports medicine clinic in Brampton, Ontario, a city which has a large number of recent Indo-Canadian immigrants. He was also a founding member of the Northern Indian Medical and Dental Association of Canada.
