The Centre has sanctioned Rs 28,229 crore for constructing the 1,637 km Arunachal Frontier Highway connecting 12 districts of the state along the Line of Actual Control (LAC) on the India-China international border, a top official said.

The highway is being constructed along the 'India-Tibet-China-Myanmar' border and the road project will be as close as 20 km from the LAC and international borders.