In a statement to stock exchanges, Infosys says chairman Nilekani conducted a review of external probes and was convinced there were no irregularities
In June, the regulator gave a clean chit to the IT major after a preliminary inquiry
Tensions between founders and company emerge again
Investigation details were released by Infosys on eve of the company's AGM
Company had promised an investigation into claims by whistleblower in anonymous mail to Sebi