“We are currently registering vehicles on the ‘CH 04 B’ series. But there are some numbers left in the older series. These numbers were earlier blocked but claimants did not go for these,” said RLA Niharika Rai.

However, if the auctions of these numbers do not generate enough response, the department will bring out a list of remaining numbers every three months through advertisements and offer them at half of their reserve prices. “It is additional revenue for us,” said an official.

Meanwhile, the last auction by the RLA, of the series CH04 B, has colleted Rs 13 lakh, and the auction of series CH 04 A has fetched Rs 11.71 lakh.

The number — 0001 in CH 04 B series auctioned for Rs 3.40 lakh against the reserve price of Rs 25,000. The number 0001 in CH 04 series and in CH 04 A series have fetched Rs 4.80 lakh and Rs 4.45 lakh, respectively, in the two separate auctions last year.