Arnav Singh Raizada is a ruthless businessman where victory is his another name . Where as , Khushi kumari gupta is a too innocent , vulnerable , timid ,silent girl who doesn't know how the outer world is. While she comes to Sheesh Mahal for her sister , she gets struck in between the chaos which was planned by Avinash Mali(Arnav's brother) leading to Arnav misinterpret the whole situation of she being involved in the chaos . Would Arnav ever realize that she was innocent ? This is a story line taken from Iss Pyar ko kya naam doon serial . Peep into this story to know more about it .