My baby is not gaining weight now she is 6 month old and weight is 6.25 kg

A. Hello dear parent, a baby should be double his birth weight at 6th month of age. So now you can well calculate how your baby is growing. Also now baby is 6 months of age you acn begun with semi,solid diet like moong dal ka Pani, rice water, watery Khichdi, home made Cerelac etc.