1. Thapki's thappad to Bihan : from Bihan's side he didn't deserve that . He was mislead by Vasu and he tgt he s Savin sapola a favour as he s marrying thaoki out if oity and layer he will regret . Also he has no other option . And wen je came to know abt the sach he himself wanted to unite them sacrificing his love for his family . So Bihan didn't deserve that thappad . But from Thapki's point of view .her Thappad s justified as she s not a toy
2. Bihan's thappad : thaoki doesn't deserve it .as shw s right . And kosi was wrong . But from Bihan's point of view it was justified . Even after she stated bhoit drama he showed trust in her . Even Bauji said that Thapki was planning he didn't blv .only wen thaoki herself said he believed .and even after that he forgave and wanted to save their relation . And even after kosi s found wounded he didn't slap . Only wen she was forcefully making kosi to admit then he slapped .
So n both thapoads receiver was not at fault but the giver was right from their side