On-road emission tests for vehicles plying on Indian roads will be mandatory once the Bharat Stage VI norm kicks in from 2020, for which testing agency ARAI is developing a unified test cycle. The Automotive Research Association of India (ARAI) is currently working on devising ways to determine the on-road emission benchmarks at different stages of vehicle lifetime in the aftermath of the Volkswagen emission cheating scandal which broke out in 2015.
In December 2015, Heavy Industries Ministry had said the agency would conduct checks on emission levels of diesel passenger vehicles in India over a period of six months. "It was explained to the ministry that we can take up that testing but as we migrate towards Bharat Stage VI norms, in any case, real driving emissions will be a part of that regulation," ARAI Director Rashmi Urdhwareshe said.
Therefore, she added: "Our current focus is rather than doing individual vehicle measurements but to develop a test cycle based on which emission tests would be done along with Bharat Stage VI. By that time we will be ready with the test cycles, so that data collection has started."