Google just keep on surprising customers and giving them great services with amazing surprises. That's why I love you Google :-D
Celebrating the lunch of the new storage service "Google Drive" i.e known by "GDrive", Google decided to award its customers for their support by increasing their GMail storage size by 2.5 GB of additional storage. So the storage of everyone's email will be increased from 7.5 GB to 10 GB. The official announcement was published in Gmail official Blog here.
Well done Google !