Add Permission to Group user using Django shell

Add user to Group

from django.contrib.auth.models import Group, Permission
from django.contrib.contenttypes.models import ContentType
from users.models import User
new_group, created = Group.objects.get_or_create(name ='new_group')

# Code to add permission to group ???
ct = ContentType.objects.get_for_model(User)

# Now what - Say I want to add 'Can go Haridwar' permission to level0?
permission = Permission.objects.create(codename ='can_go_haridwar', name ='Can go to Haridwar', content_type = ct)
new_group.permissions.add(permission).