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
Mr Khanna provided great advice regarding my petition as it was complicated. We had to apply for an amendment while current H1B extension was pending. Mr Khanna made all the right arguments and we were able to get an approval. All along the process I've been working with Kalpana and Bharathi on regular basis and had calls scheduled with Mr Khanna when needed. They were very detailed and current in terms of documentation.
I would like to thank them once again and highly recommend "Law Office of Rajiv S. Khanna".