If you have already tried to reset your password ***** unable to do so, you need to fill out gmail recovery form and provide them an alternate email address as contact email address:
Click the link:
Enter your Gmail ID into the gmail login box or click sign in with different username.
Click Need Help or forgot password.
Answer the question on the page shown there.
Else,click Try a different question.
Try to provide the best possible information to recover your account.
Gmail team will get back to you on your alternate email address in the next 12-24 hours.
If you have other queries regarding this, please reply back to me the box given below.
And if you can take a second to rate my service(-OK or more -by clicking stars at the top of the page and choose submit), that would be greatly appreciated.