Actually in Dec 2024, the Bureau of Civil Aviation Security (BCAS) introduced a new regulation. All passengers will be restricted to a single cabin luggage. In case of excess, there will be charges. If your ticket was booked before May 2024, you’ll be exempt from the new regulation.
https://www.ndtv.com/feature/only-one-bag-not-more-than-7kg-stricter-hand-baggage-restrictions-for-air-travel-announced-7343075