Dont Buy BBNL Broadband service, they have exiting plans but these plans only works when they show demo or install first time for you.
Suppose you buy 10Mb/s Plan, at the installation speed will be 10Mb/s and later it will by 1MB~3Mb/s constantly and most of the time there network will DOWN means every night till morning 10AM. When you call for support they will not response at all. It would be you luck if they response your query and resolve the issue.
For example, From last 20 days I am getting 1Mb/s where my plan is 10Mb/s. When I called for support they are not picking the call. when they pick call Every time they say now its working there are some issue check now the speed.
When they tell check now means it will work as per your plan. Exactly, what happening you know, when any complain reported they will restart there server immediately means all active user will disconnected, all active downloads will stop/paused for all other user, now user speed will increase you will get the shared bandwidth. This bad experience I am getting from long time. It would be better if you switch to other internet service or user mobile 3G/4G. Mobile network is far better than BBNL.