Hey Surender, 
   Thanks for the review! Glad you are enjoying using Automation for Jira. 
   You are quite correct regarding Automation Lite not being supported with Data Centre anymore. 
   You can continue to run your existing version for the foreseeable future for free, however at some stage if you upgrade Jira Data Center to a newer version (e.g. Jira 8.0), this version of Automation Lite for Jira may no longer be compatible with your version of Jira. There is, however, a grandfathering period, which Atlassian explains best here. 
   Andreas also wrote this blog which explains the reasoning behind the decision and gives further details. 
   I hope that helps to clarify but if you have any other questions, please do shoot through a support ticket and we can answer them there for you :) 
   Cheers, 
   John