Hello @harish.kunder, I have been told that RFA support is available to RDC members. Are you able to access the RFA documentation here. If not, you will have to talk to your account manager to get you the appropriate access.
Hello @harish.kunder, Its advised to not post same question multiple times.
If you will be rewriting parts of your existing application in this upgrade, please consider using EMA API which is considerably easier to use. Tutorials and documentation is available here.
I will try to get you access to RFA API documentation.