Yes i am already doing that . Actually I solved the problem by identifying that even though the model is set at application level , but the binding in the individual views are working only if the model are applied at view level also . Once i applied the models at view level also , the binding is working. This problem was coming ever since I re-worked my code to use Component.js (earlier without using component.js it was working fine with the model applied at application level)
Thanks anyways 
Amber