Consumer Redressal

Sir, I purchased a Dell E2014H LCD monitor from Amazone India online shop on Sep 5,2014. I got some problem with this monitor after running 10 month and I call Dell Technical support on Jul 28, 2015. Dell arrange a replacement for the same after submitting all the document and I got a replaced monitor on Aug 5,2015. But the replaced monitor is another model (Model No - IN2020M) which is according to Dell "This product is no longer available." ( That is Dell IN2020M is no longer available). Apart from the other dissimilarity this model(IN2020M) consume much more power then my original purchased model (E2014H). I communicate with Dell why they replaced a obsolete/discontinued model with a new one, but every time Dell response they replace with same specification model, which is not true. Now I want to lodge a complain against Dell. Please help me. I have all the relevant document to prove that Dell replaced a low quality monitor against my original purchased. Regards Somenath