thanks.. am going to read all of that and see what can be done
interesting observation though not sure if that could be a problem

changed the sim card to a new one(brothers) as compared to mine which is 4 years old and am attaching the screenshot with 4 apps running in the back ground, seems to have improved slightly

but will follow the thread and try and figure out what needs to be done
as always suggestions are welcome

thanks a lot man