I really don't think Agastya is the only one who can confirm that Binny is pregnant with someone's else child..
If they do decide, to not ever bring back Agastya.. there are other possibilities tool..
Imlie through her friends spying, can get in touch with her parents.. they can also confirm that she was expecting even before the marriage to Agastya, and infact that's the reason, they were getting her married to someone else...
Or hee ex-boyfriend/partner can turn up, with some guilty conscience...
I am just saying, there are other ways for everyone to find out about Binny's lies.. Infact ek mahina nikal gaya, Binny is pregnant, how come her reputable masterji father and family haven't checked up on her 😂😂
Even medically they can indicate a rough idea of conception date, which would deffo not match with the date of wedding.
But Agastya needs to be end game, they can show whatever they like, as long as that happens.