The National Automotive Test Tracks (NATRAX), which tests the strength of vehicles on different parameters, has recorded a 70 per cent rise in revenue to Rs 22 crore in FY22, an official said on Wednesday. National Automotive Testing and R&D Infrastructure Project (NATRiP) Additional Director N Karuppiah told PTI that NATRAX had earned a revenue of Rs 13 crore in 2020-21 amid the COVID-19 outbreak. NATRiP is a project under the Union Ministry of Heavy Industries. Karuppiah said that before launching the vehicles in the market, automobile companies test them on different parameters on 14 special tracks of NATRAX. "We are testing private and commercial vehicles as well as ambulances, tractors and electric vehicles at NATRAX," Karupaiah said.