@RANJU65................ thanks dr ...but it's not  clear for big ki... please can you explain it once more in a simple language..???

Well , we cn say tht big Ki is fr presenting the claim fr particular thng as we use  ('s -her's  , theirs , ,etc) "This book is hers "

"Yeh kitaab uski hai" . Here an individual hv the claim or showing possession on sme object.......

Hope ths helps u..