my baby is 41 days old

Breast milk is best you can feed for every one hour. you eat lot of vegetables eat lot of garlic, avargalai which increases the breast milk. Take milk and add 5 pods of garlic and boil with milk and drink it increases the breast milk

U can give him FM, but please find out why is ur milk not enough for him. For how long do u feed him, do u eat on time so that it body can produce milk, is the baby able to latch on properly. Etc.

only give mother milk, and first u eat more, then milk will comw

Yes. But Breastfeeding is better

u can topup with fm

yes...