Question

what was Mahatma Gandhi's opinion on untouchability​

Answer 1

he said that it should be abolished

since it is a punishable crime

Answer 2

Gandhiji's Campaign against Untouchability: Gandhiji who regarded untouchability as a blot on Hinduism wanted to do away with it completely. He wrote in 1920 “… Without the removal of the taint [of untouchability], “Swaraj” is a meaningless term.”

hope it will help you