In the previous episodes of Imagine TV's daily soap- Dharampatni you saw how Bapji questioned Sia about the sandwiches she had made. Bapji questioned her if she had applied oyster ketchup in the sandwiches she had made. However, Sia denys doing it. In the later episodes you will see how Bapji will discover the truth.
On the other hand, Kastur and Mohan will be aware that Sia had applied that ketchup but both of them will keep mum about it and will not reveal it to anybody. Bapji will somehow come to know about it and will frown with the fact that Sia had served them with a non-vegetarian dish. Bapji will also get to know that Mohan knew about Sia's act and this will make Bapji even angrier. Bapji will scold Mohan and Sia and will ask them to leave the house.
On the other hand, Saroj will ask Kastur to comfort Mohan and help him. Saroj will make a plan and tell it to Kastur to help Mohan.
source:
http://news.tvbasti.com/tv/2714-sias-act-will-throw-her-and-mohan-out-of-the-house.html