Hi Karan,
Sorry to hear your saga, we are same boat my friend, we applied in Jan 2012, and got refusal after 4 years of wait and making us wait further more.
In your case, they would not reply to you as you have your lawyer as your representative. It seems that they are still trying to take their frustration by delaying the process.
I just heard that CIC Canada is working towards family reunification pretty fast, started 01 Mar 2016.
http://www.cbc.ca/news/politics/liberals-immigration-levels-plan-2016-1.3479764.
Would you please share, as who's your lawyer and also share your timeline.
Thanks,
SV670.