Hyderabad: A woman and her teenage son died after the car they were in rammed into a speeding mini-truck from the opposite direction on the newly opened Khammam-Devarapalli Greenfield National Highway in the district on Thursday, August 6. Although the Khammam-Devarapalli Greenfield National Highway is open to the public, it awaits an official inauguration, which is expected in a week, Siasat.com had reported. Also Read 1st greenfield highway connecting Telangana, AP to open in a weekCab driver Narasihma Rao was travelling with his now deceased Pokabathini Sujatha (38) and son Pavan (17) to Hyderabad. “They entered the Khammam-Devarapalli Greenfield National Highway through a wrong route,” the officer said. A woman and her teenage son died after their car rammed into a speeding mini-truck from the opposite direction on the newly opened Khammam-Devarapalli Greenfield National Highway in the district on Thursday.