Nigeria, April 16 -- Nigeria's transport ministry has turned down requests to make public details of its recent concession of the Kaduna-Abuja rail ticketing, amid concerns over the valuation of the deal.

The government announced in January that a private company will manage the electronic ticketing of the Abuja-Kaduna line for 10 years.

The company, SecureID Solutions, which developed the platform, paid N900 million and would run the platform for a decade to recoup its cost, authorities said.

At the launch, the Minister of Transportation, Rotimi Ameachi, said the initiative is a Public Private Partnership, and that the firm will hand the system back to the Nigerian Railway Corporation after the period.

The government said the initiat...