Hello Everyone,

Following is what i am doing:

- (void) applicationWillTerminate: (UIApplication*) application {
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    [defaults setObject:navigationController.viewControllers
        forKey:@"diabetesstate"];
}

- (void) applicationDidFinishLaunching: (UIApplication*) application {
    NSMutableArray *state = [[NSUserDefaults standardUserDefaults] 
        objectForKey:@"diabetesstate"];
    if (state == nil) {
        //Will initialize a new controller and put it as root view controller
    }
    else {
        [navigationController setViewControllers:state animated:NO];
    }
}