As we know, Shaurya thinks Bhavri is Maithili-his wife and Bhavri saw Shaurya's reflection in water after she heard some related superstitious talk on seeing life-partner's reflection in water. She tried to stop Shaurya but he sped away in his jeep. So possibly, Shaurya-Bhavri thinks they are the life partners.Moreover, Shaurya has kept a new name for his WIFE-Saanchi, so he will not bother to call his wife Maithili...After accident, Shaurya will search for Bhavri and once she is found, he will take her with him and they will start staying as husband-wife with Shaurya calling her Saanchi.
Now the difficult part, both Anadi and Maithili has met each other.Anadi knows she is Bhavri's friend and she knows Anadi is Bhavri's husband. After accident, both will anyhow think that their respective spouses have died (possibly due to the death of another newly-wed couple in train with their bodies cannot be identified). Now Maithili cannot go back to her parents' house becoz of her grandmother and in the meantime, Anadi's father & uncle will come and they will think Maithili as their daughter-in-law. So Anadi-Maithili will decide to pretend as husband-wife in front of society as Maithili has nowhere else to go. (Anyways, I loved their scene when they were talking to each other in train😳)
The only tow confusions are:
1) how Bhavri's dad will react on seeing Maithili in place of Bhavri as Anadi's fake wife (I think Anadi will inform him of Bhavri's death and since Maithili was Bhavri's life, Bhavri's dad will keep mum to save Anadi and Maithili's honour)
2) how Shaurya's grandmother will react on seeing Bhavri in place of Maithili (I dont think that will happen so soon)