India, March 31 -- The National Highways Authority of India has revised toll rates across key highways in Gurugram, including the Delhi-Gurgaon expressway, Dwarka expressway and Sohna Highway, with the new charges set to take effect from midnight of March 31, officials said.

NHAI officials said the hike is part of an annual revision linked to the Wholesale Price Index (WPI). "The toll fees revision is an annual exercise, and the change is linked with the Wholesale Price Index (WPI). The fee hike will be applicable from April 1," said a senior NHAI official, asking not to be named.

At the Kherki Daula toll plaza, fees for cars, jeeps and vans have increased from Rs.80 to Rs.100 per trip, while return trips will cost Rs.150. A monthly pas...