The suffixation process plays an important role in the formation of the oblique case. It functions as the object of post-position.
The essential condition for the oblique case is:
1) In an SOV language like Hindi when either a noun or pronoun followed by a post-position. The preceding NP is marked as the oblique case.
E.g. NP-suffix post-position
tum bure vicaro se dur raho
you.sg bad ideas from away live.imp
"You keep away from bad ideas."