The government had ordered a probe and asked automotive testing agency ARAI to find whether the German carmaker had cheated emission tests in India as it did in the US, where it faces a fine of up to USD 18 billion.
The Automotive Research Association of India (ARAI) was asked to submit its report by the end of the month.
Executives of the group updated the government officials on the evaluations so far on the ongoing emissions issue with reference to India.
"Since there is a complex combination of several brands, various models, different engine variants and gearboxes as well as different model years that need to be analysed, establishing detailed facts is taking a longer time," Volkswagen Group India said in a statement.
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The group will present its results from the evaluations by the end of November 2015.
"During this period, the company representatives will stay in regular touch with ARAI to keep the authorities updated on the analysis. The next steps will depend on the findings from these evaluations," it added.
"That will give an indication. Volkswagen's response based on inputs from its headquarters in Germany, as to which vehicles are affected, that will actually mesh into the report and give the whole picture," Sharma said.
He, however, added: "But Volkswagen is saying they need some more time for response from their headquarters, they will get a response from headquarters only by November-end."
VW officials also rubbished reports that the company would recall about one lakh vehicles in India due to the emission scandal.