Dhindsa started his political journey as an active student leader during his graduation years at Govt. Ranbir College Sangrur. He was the first elected Secretary of Ranbir College Students' Council and subsequently elected as the president of council too. After graduating he was elected as the Sarpanch (youngest in whole district) of his native village Ubhawal in Sangrur district. Amongst the elected Sarpanches he became the chairman of Block Samiti Sangrur. Later he was elected as managing director of District Cooperative Bank, Sangrur. In 1972 Dhindsa won Dhanaula Assembly Constituency seat as an independent candidate and later joined Shiromani Akali Dal under the guidance and motivation of Sant Harchand Singh Longowal. He again was elected as an MLA from Sunam on Shiromani Akali Dal ticket and inducted as Minister of State (Independent Charge) holding the portfolios of Transport, Sports, Tourism, Cultural Affairs and Civil Aviation. In 1980 he again was re elected to Punjab Vidhan Sabha from Sangrur seat. In 1985 he became MLA from Sunam. Later in 1986, differences brewed in Surjit Singh Barnala's Government on the issue of Operation Black Thunder and Dhindsa chose to go with the faction of Parkash Singh Badal in retaliation to Operation Black Thunder.