"The report can be expected in a week," a Road Ministry official said.
Ministry of Road transport and Highways (MoRTH) has set up a committee to investigate the matter. Nitin Gokarn, CEO, National Automotive Testing and R&D Infrastructure Project (NATRiP), is heading the committee.
"The committee will find out how it happened when there are standard emission norms specified in detail by the government," the official said.
In one of the largest vehicle recalls in India, General Motors India, last week, recalled 1.14 lakh units of its multi-purpose vehicle Chevrolet Tavera, manufactured between 2005 and 2013, to address emissions and specification issues.
The committee will also consider "whether any penal action can be taken against the company for not following the standard prescribed norms and measures to avoid such things in the future".
Nearly 2 lakh units of automobiles have been recalled by various companies in India, mostly four-wheelers since industry body SIAM announced voluntary recall policy for its members last July. After GM's recall last week, it has now crossed over three lakhs.
SIAM's recall policy, however, covers only those issues that exist in motor vehicles which do not meet the safety requirement due to manufacturing defects and remedial actions are taken in this regard and not emission related matters.