I think thers economic division in india because people make this divisions to create the difference between rich  and poor now its better but before there will be some rich people who treated poor peoples as dust of their shoe and they used to keep them as servants in their homes but that time servants doesnt mean that cleaning utensils or any other simple household work it means that they should not enter the house and touch the owner.
hope it helps but dont forget to mark it as best pppppppplllllllllllzzzzzzzzzzz