"It has happened only in Tamil Nadu and it is really one of the success stories," Gadkari said.
"On the basis of the experiment in Tamil Nadu, we have prepared a DPR (Detailed Project Report) worth Rs 14,000 crore identifying the black spots on National Highways and assessed the underpasses and bridges required," he said.
The Minister said that his department had submitted the data to the Finance Ministry and they had accepted it in principle.
"It will now go to the World Bank... It is the highest sensitive subject for the government."
Gadkari said the success ratio was not satisfactory despite attempts to stop road accidents for the last five years. "The accidents have reduced only by 1.5 per cent to 2 per cent."