Few months ago I purchased a double antina WiFi and took an unlimited bsnl broadband plan of Rs 650. For the first few days the speed was too good that I happily enjoyed the service. After then connection gradually became slow.
Also if there is any problem I need to wait for many days for their service. Now this network has become too slow, take minutes to load a page. Often they cut off phone and network behind the name line correction. So if you want a high speed and quality network please don't choose this.