Most of the times when you miss a call from an anonymous number, the very 1st question which pops up in your mind is: Whose call was it?
You can find solution through this page on Bharatiyamobile, or this international reverse lookup service from TP2 Location or this page by Hacktrix that could help you trace a mobile phone number in India. Let me know in the comments if you have had any success with any other service in tracing a mobile phone number in India and also Indiatrace - Mobile Number Location Trace.