Central Government vide General Circular no. 18/2012 dated July 26, 2012 has extended filing of the Cost Audit Report in XBRL format till December 31, 2012. A company follows different financial year viz. from October 01, 2011 to September 30, 2012. As per Companies (Cost Audit Report) Rules, 2011, filing of Cost Audit Report becomes due by March 27, 2013, i.e. within 180 days from the end of the reporting year. Is this company still required to file the Cost Audit Report in XBRL format by December 31, 2012 or it would be allowed to file the report until March 27, 2013?