Under Ind AS 103, in a business combination achieved in stages where the parent's previously held interest in the acquiree was classified at FVOCI under Ind AS 109 (election in equity instruments), the cumulative OCI on remeasurement of that interest to acquisition-date FV is:

For equity instruments designated at FVOCI under Ind AS 109, gains/losses are NEVER reclassified to P&L (no recycling). On step acquisition, the cumulative OCI is transferred within equity (typically to retained earnings) — paralleling the treatment 'as if the previously held interest had been directly disposed of'.