Dear if you choose Malaysian airline then they allow 30 kg for economy and 40 kg in business class. While other hand if you. Choose economical or low budget airline then you have to choose add ones for weight like air asia approx 2 to 4 thousand inr for 30 kg depends on peak time,and you can choose moreqeight than you have to pay little more, they charge for even one glass of water or blanket . Be prepare like care small blanket and water bottle with you before travel. Have a safe journey.