How to put Turning on step 2 verification

First you login in google.com
And press setting-- Google account settings --- using 2- step up verification--- and select phone model and give phone number& then Google will send a verification code to your mobile number, confirm the verification code--- give another number for back up purpose in case of original number lost---  at last Google will some back up codes & it ask to take print outs. In case of emergency we can use this back up code to access Gmail--- at last press turn on verification setup2.
After completion of this process you can login with Gmail account with password &verification code (that code was automatically reach your mobile).
If any person who hack your email Id, he can’t do anything without verification code.
For more assistance visit our screen shorts:-





TO ENABLE OR DISABLE THE SET 2 VERIFICATION FOLLOW THE LINK
https://accounts.google.com/SMSAuthConfig

IF U HAVE ANU DOUBTS ON SETP 2 VERIFIACATION VISIT THIS LINK
http://www.youtube.com/watch?v=zMabEyrtPRg&t=2m13s