USCIS Processing Time as of 02/15/2018
USCIS generally process cases in the order they receive them. The link below provides you an estimate of how much time the office handling your case currently takes to process your type of application, petition, or request.
USCIS Processing Time Information
Thanks to Mr. Rajiv Khanna's team for going through the long process of Green Card. I got my green card last week. Especially my thanks to Mr Mathew Chacko and Mr Vijay Durgam. They are so helpful in my case.