On 10 November 2023, an Airbus A320 inbound to Delhi going around from an approach to runway 29L came into lost required separation with a Boeing 787-8 that had just taken off from the closely spaced parallel runway 29R. The aircraft were on two different radio frequencies. Two successive TCAS RAs occurred and were followed, which prevented a collision. Prior to that point, both aircraft had been flown in accordance with their clearances. The conflict occurred because the aircraft flight paths as cleared created a collision risk. Inadequacies in related air traffic control procedures and practices and in controller performance and support were assessed as causal.