Intellij idea says Read Only File System to any file located on other drive

Question

I am using dual boot with ubuntu 18.04 installed on added SSD drive, and windows 10 installed on internal hard drive. I am facing the following problem for projects located in my hard drive, but works properly in my SSD

Whenever i am trying to save any java file i am getting the following error

Here is my file permission

And getting this error notification

I tried 'invalidate cache and restart', doesn't work.