I think that lady behind that statue is riddhima herself 🤔
may be Vansh was in love with her but she betrayed him, when in real kabir might have played some tricks n kidnapped riddhima n she is suffering from memory loss now...
reason IMM title song played for Vansh towards Riddhi but he is not in love with her yet...so there might be some past connection..
n y kabir is so confident of trapping Vansh using Riddhi...