@Google signing it through other device ,click more ways to verify if mobile not there ,click enter you password ,still asking code to be entered through your phone.Instead go to forgot password and will ask any old password, type your current password and you go through it.
Hi Aasharya. If there's something different about how you're signing in, we may need to verify it's you: http://goo.gl/RdK2bt . Hope this helps.