The Committee on Infrastructure headed by Prime Minister Manmohan Singh gave an in-principle approval to a Rs 22,750 crore package for converting 6,500 km of four-laning of highways into six-laning. Most of this six-laning (around 98 per cent) would be done on the 5,846 km of the Golden Quadrilateral. The Committee however did not clear the new model concession agreement as there were still a couple of outstanding issues pertaining to the treatment on change of tax rates and creation of universal road safety