Gmail — complaint about my gmail id

Address:

Thane, Maharashtra, 123

Sir/madam, i hav email id [protected]@gmail.com which i used for social activity and personal work purpose.. But when i log in my email id gmail demond 6 digit code for verification my account. Actually i have lost my verification phone no. I am not able to login.. Kindly help.. So i am very worried about it.. As i saved so many my important articals and files..in gmail.. And it is very important for me.. Kindly help me sir/madam regarding this.. I will be very gretaful to you sir/madam.. Kindly look on this matter.. Thank you,

Best regards,
Nisharya bhadke

[protected]@gmail.com