Hi bijo
Hope you don't mind the intrusion here.
I would stop using soap on your baby. It can be very drying on that delicate new skin.
When my son was very small I used plain water. Occasionally I would use a few drops of a baby (soap free) cleansing liquid in his bathwater, I think I did that because it was expected, because the water was just fine to get him clean.
Where does a baby go to get dirty
If I ever have another I don't think I will use the cleansers and stuff you buy in the shops.
Janyce