I'm sure she wouldn't have shown itif she was not gonna use it at some stage.
Anyways, here's a possibility... just don't shoot me for this, o.k.
So, homeless guy wakes up, wears the jacket and something horrible happens to him, (accident, hurt beyond recognition)?, every one thinks its Angad because of the jacket, mean hile Angad is recovering forn the biggest hangover of his life, not realising what has happened.
As for Josh, he's too busy eating to see the news.
Kripa hears this and disappears from her engagement.
Horrible possibility, I know... once again I say please don't shoot me for this thought.