After successfully sync, I update my one of google contact's mobile number. after 2 days, Its still not reflected in my Outlook.com - People 

I have checked & it's updated in my Google Contact.

Even I changed my one of the Skype contact & it's also not yet reflected. Don't know how these services are working.. 

even there is no any such indicator or status or small app from microsoft where we can check the contact side by side.

Now, God (Microsoft) knows when that will sync & updated successfully. Instead if they provide the sync option to us, we can easily sync & take that in my Lumia. Now, I need to update that in two places 

1) in Google 2) in LUMIA / Outlook separately because of this bad service sync.