my male child is 1.1/2 year old .his weight is 9 kg only how do I increase the weight sir#AskTheExpert

A. you can give full fat milk and protein rich food regularly. provided the baby is able to digest it well. do not forcefully feed. as long as the baby is active and healthy nothing to worry about weight. not all babies are chubby. some are lean too. just feed good home made foods. try and add bits to his diet regularly. make a powder and you can add it to many baby foods.