Forgot a mobile number is an common situation for every human. You can check your own mobile numbers by dialing the following codes from your own phone.
cell phone lights How to Check Your Own Mobile Number
Network Provider
Code
Airtel*141*123# or *140*175 or*140*1600# or *121*9# or *282#
Idea*789# or *100# or *1# *131#
Vodafone*555# or *555*0# or *111*2# or *777*0#
Aircel*1# or *234*4# or *888# or *122*131#
BSNL*1# or *99#
Docomo*1# or *580# or *124#
Virgin*1#
Videocon*1#