Company audit due date under companies act 2013

Audit should be completed before AGM , First Board approved draft F/S and forwarded to auditor for their report and then auditor do audit and forward to board including any observations or qualifications ,Once board approved the audited financial statements & Report ,it will be signed and then auditor sign the F/S , and on same meeting or other meeting borad report approved , now these all work to be completed before the AGM otherwise provisional Financials to be submitted within 30 days of due date of AGM ,you may know that AGM to be held within 6 Months of end of FY...for listed companies its as per Reg. 33 Of LODR
Which is within 45 days of end of Quarter (QFS With Limited Review Report ) and Yrly within 60 days of End of FY ( With auditor report ) ,so accordingly you can consider this timeframe to complete audit...