छुआछूत

Etymology
From.

Noun

 * 1) touching that which is religiously untouchable
 * 2) contact between  and untouchable members of society
 * 3)  religiously impure conduct
 * 4)  to touch or not to touch; contemplation on touchability/untouchability
 * 1)  to touch or not to touch; contemplation on touchability/untouchability