6.7kg is on the lower side, if we want the child to reach wt of 10-12 kg at end of first year. Head circumference and height is normal. General activity, health and height are important and it is good that it is on right track. Dietary advise after 6 months would be to give home based food. Try to increase calories by adding oil or ghee to food Try to keep food which is protein rich ie pulses, besan based items, curd etc