My friend got caught by the cops for being underage at a bar last night at 3am. Pls help ASAP

So my friend and 4 others went to a bar last night at 12:30am to watch the Barcelona vs Madrid game and they had to idea that it was 21+. While leaving around 3am my friend and another guy were caught by some cops standing outside the bar. The other 3 managed to get away. They took his adhaar card and father’s number. To make things worse he snuck out of his house to watch the game. So he really does not want his parents to know as they are extremely strict. They have not called his father yet so nobody knows this has happened. Will they call him or were they just trying to scare him. Someone pls help ASAP.