Complex sentence: Jai's domineering sister Jigyasa (Ashwini Kalsekar/Jaya Bhattacharya) doesn't want the Walia family to be humiliated, so, she forces Bani to take Pia's place as the bride.
Split into simpler sentences: Jai's domineering sister Jigyasa doesn't want the Walia family to be humiliated. So, she forces Bani to take Pia's place as the bride.