Thanks @Kavita & Akanksha madam.....

Jaise ki Kavita ne kaha, birth weight first month mein Kam hota hai, jo ki slowly increase hoga, bas har 2 ghante mein ya on demand breastfeeding karate rahiye. Baki, agar bachha thoda lean and thin bhi dikhta hai to koi problem nai hai agar vo properly feed le rha hai aur active hai to

First month maine thoda sa kum hota hai weight .. then increases hota hai.. bres3 karte rahen .. 6 mahine tak sirf maa Ka dudh

Weight to abhi nhi karwaye , birth ka time tha 2685gm

Ma'am ki dhoodh hi accha hai. Isme hi saari health factors hai