Why was the movie named 'Lekin'?

I don't know if I'm a hundred percent correct but when Samir ends up being found in the jail cell passed out, his friend runs over and then calls out for the other people searching for him to come and help. The other guy runs up and says "Lekin..." and then something to the effect of "But... How did he get in here?". If I'm not mistaken Lekin means "But". My Hindi's a bit rusty, so maybe someone else can clarify, but that's my theory.