IFRS is International Financial Reporting Standards. ICAI in his committment to converge old AS into new AS called as IND-AS has forwarded the same to Ministry of Corporate Affairs for notification for their applicability. But at present they are not yet notified and old AS are applicable. Actually IFRS are not applicable but IFRS conversged IND-AS will be applicable when notified. XBRL is extensible business reporting language of submitting annual accounts to the MCA. For some specified entities it is compulsory to file balance sheet and account in XBRL form upto 30th Sept. 2011 without additional fee. More information on MCA website. As regards AAS it is continuous process and all AAS are applicable. Refer icai.org- resources section.