UNDER THE LENS

2015

JAN / AUG / OCT: Sebi gets three letters highlighting flaws in NSE’s algo-trading systems

NOV: Sebi sets up expert panel to examine matter

2016

MAR: Expert panel report says NSE violated norms of fair access

JUN: NSE writes to Sebi, says it has addressed issues raised

SEP: Sebi directs NSE’s board to set up independent enquiry

NOV: NSE appoints Deloitte to conduct forensic probe

DEC: Deloitte’s report to Sebi suggests NSE’s systems were prone to manipulation

2017

FEB: Sebi board discusses NSE algo issue; directed to audit cash & currency segment

MAR: NSE appoints EY to conduct forensic audit of cash & currency segment

MAY 22: Sebi issues show cause notice to NSE and 14 officials for allegedly violating SCRA & SECC rules