Until RBI gives a thumbs up, no state can implement crypto framework but no one can stop them from working on it.
Someday RBI has to come up with regulation.
Good or bad RBI's decision has to be accepted if you stay in India.
But do you have any links to confirm the source of your information ?
Yes you are right until RBI gives final judgment about bitcoin or crypto currencies are legal or illegal in india, we can not do anything as a legal activity in bitcoin or Blockchain technology so we have to wait until RBI gives statements about that it is a legal or not.