Well karthik655,
So what you need to do is to retrieve the login information (username, password or session-id) originated by your web/application server and set them on the LightstreamerClient.connectionDetails object before calling the LightstreamerClient.connect() method (please refer to setUser() and setPassword() here:http://www.lightstreamer.com/latest/...onDetails.html).
Your MetaData Adapter receives this information in the notifyUser call where you can manage issues related to authentication, authorization, and entitlement.