how can not discriminate between people on the basis of their religion caste or gender one word only
Dear student,
The one word that we can use on, not to discriminate people on the basis of caste and religion is that, we can say " we belong to the same world that is Earth ". By this line or by the word Earth we are showing a unity between us. We all are people, we need each other. And if somewhere is unity, then there is no discrimination at all.
Hope this helps.