He received state award in 2009 and national award in 2013 for his remarkable services in teaching. Earlier, Grewal was awarded for composing a Punjabi song 'Aao Punjabi Sikhiye' (let's learn Punjabi) by American India Foundation Trust for making pupil using modern technology. He has also composed songs on the menace of cheating in examinations 'Chann Sitare Bann Jana' that has been picked up by Punjab School Education Board.