Sections of Gooty - Yelahanka are yet to be doubled. So many sections in between.
1) Yelahanka - Makalidurga
2) Devarapalle - Penukonda
3) Dharmavaram - Gooty Cabin
Doubling work has been initiated ages before...
more... and this such an important busy route is not being doubled, just like Wadi - Daund Section.
What is causing this delay? I think Makalidurga is a hilly terrain but what about the rest?