Child born with both male and female organs

newkerala writes:

In an unique case in medical science, doctors in [Ahmedabad] would conduct a complex surgery on a two-year-old child born with both male and female reproductive organs.

On detailed inspection, including conducting laproscopy, the doctors noticed that he had a uterus, fallopean tube and vagina on one side while a fully grown male reproductive organ on the other side of the body.

I wonder how the doctors decided that the child was a boy and not a girl. Or was it simply that the child had been treated as a boy since his birth, so the doctors chose to stick with that.

Being a biology novice, I don't even know if there is some sort of intrinsic measure of one's gender, especially during infancy, apart from looking "down there".

Link: Child with male and female organs to undergo surgery.