I have a strong suspicision that they used a body double in at least three scenes in Thursday's episode.
1. At the jeweller's shop, they kept showing her back....the person was broader than Prachi is.
2. At the pooja, when Bani's hand comes forward to help Pia with the flowers, I noticed the hand had the catholic cross tatoo. It's a cross with the ring on top, normally seen on the hands of many catholics in Mumbai. Also, Bani's nails were shown cut short and unpainted in the scene at the jeweller's when she switched off the phone on Pia's call. This hand has long painted nails.
3. At Jai's office, again her back view was on display..much broader and skin much darker!
I think Bani had taken a day off or something.....but the difference was obvious!!