Timely response to revenue audit memos required; failure to reply promptly leads to escalation of audit objections. Instruction No.1176/CBDT reiterates that when a revenue audit party issues an audit memo noting irregularities, the ITO must reply with greatest expedition and in any case within three days of receipt, either accepting verified facts or promptly pointing out discrepancies; failure to do so leads to the objection being recorded in the Local Audit Report and possibly raised to a Draft para.