Change the question into indirect speech:
Mohan said to me,"Why do you look so sad and gloomy today?Is there anything troubling you?Can I do anything for you?"
Please answer it as soon as possible I have final exam of english on 21/01/11.So please answer quickly.
Hope this helps:
Mohan asked me the reason to me looking sad and gloomy that day. He asked whether anything was troubling me. He asked whether he could do anything for me.