Hello bharathlive.
Welcome to Apple Support Communities. I understand that your friend doesn’t want to restore her iPhone because it has never been backed up. I’m happy to help.
If your friend’s iPhone currently shows that it needs to be restored, there isn’t a way to back up the content on her phone. I recommend that your friend restore her iPhone. She can locate the nearest Apple Authorized Service Provider in her region to see if they provide data recovery services here: Apple - Find Locations - Location Selector
Once she has restored her iPhone, I recommend backing up the iPhone regularly using the steps here: How to back up your iPhone, iPad, and iPod touch - Apple Support
Take care.