python manage.py runserver, shell, dbshell freezes on git-bash

I'm trying to run the interactive shell in python virtualenv in windows, on git-bash, but it isn't running. Strange thing is, it doesn't seem to do anything, just the cursor is blinking on the next line, giving no output.

$ python manage.py shell
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However, I'm able to run commands like - migrate, makemigrations, sqlmigrate. Problem is occurring with the commands - shell, dbshell, runserver.

This seems to be some git-bash related issue, because I'm able to run shell from command line. I'm using PortableGit-2.4.3.1-2nd-release-candidate-64-bit.7z.exe on windows.