The committee "was required to submit its report by November 30, 2004. It had sought an extension for deliberating on issues raised by various stakeholders, whom it had heard.
As per the extended time frame, the group is likely to submit its report by December 31, 2004," he said in New Delhi.
The advisory group on rationalisation of tariff structure on crude petroleum and its products, with Lahiri as chairman, was constituted on September 27, 2004.