Missing person - Need help/Suggestions

Hi all, this is all throw away account I created. My friends mother has been missing from the past 10 days in Delhi. I only got to know about it today, I don't have the complete details as he is not in a state to speak and is not well since his mother went missing. He mentioned they have filed a police complaint but they have no update so far. She is 53 years old, and was last seen in Malviya nagar. I am not from Delhi though but I would really want to help him. Can anyone suggest a way how they can search for her? Any leads would be appreciated. I can’t imagine what he and his family must be going through.