My requirement is to upload a single file which will be selected by the user during runtime to Google drive. I am getting email id and password from user. How to do it? If i any
You can use the Google Drive SDK/API, it's fairly simple stuff if you read through the documentation,
https://developers.google.com/drive/
https://developers.google.com/drive/manage-uploads
There's a .NET API available for download, although it's in beta I've used it without problem.
https://developers.google.com/drive/downloads