I just watched the epi and my fav scene obviously was the one with Raghav and Aayi. There was a lot of warmth in that scene between the two, one can't help but admire the relationship. So much potential in this relationship.
Anyway, coming to the point, she says that it's inauspicious to have a clock that does not work and she asks him to change the batteries, which he's delighted to do. Then he says "ab yeh ghadi theek chalega".
Maybe I'm looking too much into it but I honestly felt that Raghav is the change that the D family needs, specifically fpr Aayi and Sanki after what seems like a sudden halt in their lives. He's setting everything in motion for them and will be the bearer of good news in the form of their shield. Who knows, they may accept him as a son, because waqt badalne mein waqt nahi lagta, and may also be in a great dilemma when their real son returns. That will be quite interesting to watch.
Also, if you believe in numerology, 11AM is an auspicious time.