title: Send Push notification in android
body: <p>I want know something about push notifications. I am making a android apps and in this apps first user register to this android apps and data store on remote database which store on SQL SERVER and after that he logins. My question is that i want send notification to my android application user. How can i send notification?
  So, please give me good example or example link.</p>
  
  <p>Thank you in advance.</p>