Sita Thakurani came to the house of Sachidevi, bringing with her many kinds of eatables, dresses and other gifts. Srimati Sita Thakurani was astonished to see the newly born child, for she appreciated that except for a difference in color, the child was directly Krishna of Gokula Himself.
Reference:- https://kids.iskcondesiretree.com/eBooks/Chaitanya_Charitamrita/Chaitanya_Charitamrita.pdf