Arnav had to call Garima "Amma" and Payal and Arnav are Step-Siblings! [Unconfirmed Spoiler]

Finally Arnav had to call Garima "Amma". Garima escapes from Dadi by moving to Lucknow.But when Dadi and Raizadas visit the GH then Dadi happens to see the Gupta family photo on the wall. And she recognizes Garima. The truth revealed is:

1. Payal and Arnav are step brother and sister.

2. But there is no blood relation between Khushi and Arnav.

And finally Arnav had to call Garima as "Amma" bcoz she is his stepmother!!

Probably this sounds much confusion. Lets put the possibility this way :

Arnav's father's:

1st wife Arnav's mother - Children - Arnav,Anjali

2nd wife Garima - Children - Payal

Now Khushi is Payal's mausi's (Garima's sister) daughter hence cousin of Payal. Payal,Arnav and Anjali are having blood relationship but Khushi is not having blood relationship other than Payal.

When Arnav's mother came to know about Garima and Payal, she commited suicide.

Can't this be possible?

Credit: Myeduniya