Hi Vivek,

Please specify in detail what you are asking. This is common courtesy to those who will spend the time coming up with a solution to your problem.

-Yousuf

See: http://explorer.nuxeo.com/nuxeo/site/distribution/cap-8.2/viewBundle/org.nuxeo.ecm.platform.login.token

Follow the source code on GitHub and you will likely find your answer.