Thanks Akshith & Tong for your responses!
I have found a kind of work around for this as below :
We need to set the statusCode(output of any handler service) to 1 in Request Handler Service to skip end point service and directly invoke response handler service.This might create a fault. Hence we need to create a new SOAP message(pub.soap.utils:createSoapData) in Response handler service and add body(pub.soap.utils:addBodyEntry) and “set” SOAP message(pub.soap.handler:setSOAPMessage).
We can use pub.soap.handler:get(set)Property services to carry the data/controls between handler services.
Please let me know if you have any better alternatives.