Many users are reporting that Gmail is not working properly to send mail email or attach file for the last few hours. The problem is not just for India, but also in Japan, Australia and another parts of the world.
Karwaan Times observe that Google Drive also upload and download the files. Google has additionally affirmed the blackout on its status page.
One person commented that he is not able to send emails, at the same time when you try to compose an email.