I think any such circular or opinion from the government official is really discouraging for those who are doing a bitcoin-related business as we know that the government can not ban bitcoin completely so everyone will be able to use it on individual level but yes, it would impact the legal bitcoin related businesses.
It will also impact individuals traders and users also.If bitcoin is declared banned,how can one buy bitcoin with Indian currency?Only those who will keep it holding in any cold offline storage will not be able to be traced.Rest all will be at risk