Are you want to buy New JIO smartphone, then follow below procedure to apply online
Step1: Go to jio.com
Step2: Sign in into your JIO account (Register using mobile number(one time password) if you are a new user)
Step3:Submit your details
Step4:Thats it, you will get greeting message, and you will get informed
You will also get an email from jio regarding this. This is first come first serve basis and Phone will be available from September month.