So after Sheela breaking the news that Kaira is getting engaged to the brother of Mr. Vikram Dhanrajgir , she was shocked so she will anyhow get the history by 6 pm (engagement time ) and as per SBS spoiler that Varun forgets his ring , there will Avantika may stop the engagement or will tell Adi and Pankhuri to stop the function. But he will take the matter himself and convince Avantika to let the engagement as they dont have proofs and he will find the truth anyhow before marriage. Even many other possibilities are also there as Varun may finally stand up for himself and unveil the truth but as per my thinking other options looks highly unlikely.
Then who is Sumitra Devi. Is she the sister of Kaushalya Diwan or sister in law of Nanaji . Plus this Sumitra Devi may be someone related to Mr. Vikram Dhanrajgir who may have given that Ashram to nanaji or nani ji , if she is her sister , and that ashram may now be known as Diwan Mansion . That why Vikram gifted then Diwan Mansion painting. I personally think Adi and Pankhuri will go in search for that Sumitra Devi and they may find that she is their nani sister and now settled in Australia . So they will decide to go there in search of her and simultaneously they can also celebrate their Honeymoon too along with Rubel and Payal .
I may be wrong here but these are solely my views . Yours are truly welcomed.