Alekh basically says he will only come if sadi comes and naturally Vasu will not agree.
So this is what could happen
a) The Illicit affair of inderjeet is open he has a third son and brings his mother
so vasu is kicked out of the house by this other woman.
Then She has no where to go , no money no status no nothing. Then guess who comes to her rescue
The wonder women Ragi and Sadi
UP UP And AWAYY!!!!! Sagini to the Rescue
They take her in and treat her real nice then vasu regrets and they all plan together and kick that other woman out.
Inder then blurts that this was all done to make vasu realize
and all of them return back to RV house. Then Rakesh naveen track starts.....
b) Scenario no. Dho
Vasu gets scared and says ok for sadi to return and , ragini, sadi , alekh ranvir all of them return to RV house.
Vasu gives them cold treatment but sadi and ragini take care of her cause she is sick.
Then Sadi and ragini together find out who this third son guy is ( mind you he has already entered the scenes and is having his own villain situations) and then they will confront him and his scheme only to find out that he is the brother of Naveen who was hidden away by CM for future motive. SO more pardha fash of them. Vasu realizes how nice her bahus are and THE END
c) Scenario no. Theen
Alekh says sorry mum, Ranvir will stay with you and commands Ranvir to stay with Vasu and take care of her. So Ragi and Ranvir return but Alekh and Sadi are away and eventually Ranvir solves the third guy mystery and does parda fash of Naveen and brings back sadi and alekh
hmmm any more scenarios ?