my baby is 13 months old but still she weights only 7.5 kg. how can we increase weight

A. Hello good morning !! After 6-8 months babies weight gain slows compared to earlier due to achieving physical milestones. No need to worry ,if the baby is active and reaches milestones . Give weight gain foods - Mashed banana,steamed and mashed potato, dal kichdi cerelac,ragi malt,nuts powder ,ghee ,idly,egg help in weight gain.