uma and his baby brother

he is a bit old to have such a small brother And they always together where is their family and the more importantly their parents. i wonder if they orphans or if they not than who exactly is the little boy to Uma- i think there is a mystery behind the little boy and Uma. also again have to mention Uma's name if its separated then shankar is his name bt if not then its together and so whats his surname.

if he does not have a family then will we be seen the brothers staying with kanak and her family?

Don't Know. Still To Early To Tell.