He was president of Punjab Pradesh Congress Committee.
He is a former member of Punjab Legislative Assembly and represents Sanour.
[1] Lal singh first became a member of Punjab Legislative Assembly on the Congress ticket from Dakala in 1977[2] Since then he has represented Dakala 5 times until 2012, when Dakala underwent boundary delimitation.
[3][4][5][6] In 1985 and 1997 elections he lost to Shiromani Akali Dal candidates Prem Singh Chandumajra and Harmail Singh respectively.
[7][8] In 2012 elections, Singh successfully contested from Sanour.