So at last everything is complete with jQgrid. Along with busy delivery pipeline i managed to clear all the remaining hurdles and now Grid talks to WCF Services, passes JSON Stream has following features.
-- Multi select (Check box)
-- Master details
-- Grid as sub-grid
-- Add/Edit row
-- UI Date picker
-- Searching data
-- Inline Editing
-- Controlling server errors
-- Multiple toolbar search
-- Search Big Sets
Right now the REST services are talking to our local wcf services. Will make a demo thing and post soon. This surely helped me a lot, jQGrid Help.