That was totally mean of Manorama. In entire cast of TMH, hers is the only character, I cannot stand (and next will be Vaishali's mom I guess)
Firstly she is jealous of Govind Narayan Agrawal family coz they are very affluent, so she is always trying to outperform them. Her pride is her "Afsar beta" who loves his wife Rachana. So like a typical orthodox MIL Manorama is always controlling her DIL and trying to keep her son and DIL separate. And, she is after Panchhi coz when she stole the towels in Shivgarh guesthouse, and had got caught, she had poured all blame on Rachu, but Panchhi had confronted her, so to avenge that, she is hellbent on destroying TiChi's happiness too 😡