Hello Anoop,
Unfortunately i cannot assist you with the groovy-scripting which seems to be a requirement.
Rate components does not mean X number of users at the same time, it means that for every second X users will arrive at your service whether it can handle them or not. This paradigm conflicts a bit with the concept of Concurrent Virtual Users (VU's) which suggests that at any given time X number of users should be performing actions on the endpoint. This second concept can only be emulated in LoadUI using the Load generators, where Rate components are used for Requests/second.
I hope that answers your question.
Best regards,
Mikael
