If your carry-on baggage exceeds the standard 7kg (15 lbs) limit in 2026, you will likely face a mandatory gate-check and a significant "excess baggage" fee. Many airlines, particularly low-cost carriers and those operating in India under the 2026 BCAS "One-Bag" rule, have implemented strict enforcement at the boarding gate. If your bag is found to be overweight, it will be moved to the aircraft hold, and you may be charged between $30 and $70 (or roughly ₹2,000–₹4,000) depending on the airline. To avoid this, travelers are encouraged to weigh their bags at home or use the airport's self-service scales before security. If you know your bag is heavy, pre-paying for an extra 3kg–5kg allowance online at least 24 hours before your flight is typically 50% cheaper than paying the penalty at the counter. Full-service carriers may be more lenient, but even they are tightening rules to manage fuel costs and overhead bin space.