Hi deep,
Map Maker only shows the top three contributor's profile for any
given area/viewport. You can improve the visibility of your profile by
contributing more and enriching the Map Maker content. You might also
want to visit the following help page for getting started:
http://maps.google.com/support/bin/answer.py?hl=en&answer=155406
Do let me know if you have any other doubts.
Regards,
Map Maker Guide