Sister-in-Law Is at Home! S01 E1133 A Chemical Solution Changes Tillu, Teeka, Malkhan and Angoori's Behaviour

Vibhuti steals a solution from Saxena's secret laboratory to improve Angoori's health and serves it to her. The next morning, Angoori's changed behaviour leaves Vibhuti and Tiwari shocked. Tillu, Teeka and Malkhan act as different people altogether.