Hii @kartik,
To solve permissions issue on Laravel, I have done this (with root user):
cd app/
chown -R www-data:www-data storage
cd storage/
find . -type d -exec chmod 775 {} \; && find . -type f -exec chmod 664 {} \;
And always in app/storage directory :
chown your_user:user_group .gitignore cache/.gitignore logs/.gitignore meta/.gitignore sessions/.gitignore views/.gitignore
Now, exit the root user, and it's ok.
Hope this works!!
Thank You!