After independence, Lal emerged as a popular farmer leader in the 1950s and started a farmers' movement, for which he was arrested along with his 500 workers. After some time, then chief minister, Gopi Chand Bhargava, made an agreement and the Muzzara Act was amended. He was elected a member of the Punjab Assembly in 1952 and President of the Punjab Congress in 1956. In 1958, he was elected from Sirsa.