Sir, would u plz share who the reliable source is?
Declaring these vehicles illegal is no more option in my opinion, not because the govt loves us, but because they have already given amnesty on investment of 2.5 Crore in a business etc in order to get more and more taxes and money. If the amnesty on smuggled vehicles is declared illegal then someone will challenge the amnesty on investment of 2.5 crore too, and that's something govt. won't want.
30 or 40% extra tax may be a possibility, but again these are all rumors. Fingers crossed till the final verdict.