Nagarjuna explained the mystery of Naga as why they have put ‘Naga’ before their names. When his Dad (Nageshwara Rao) was in grandmother’s womb , she used to dream about snakes .
And after giving birth even before naming ceremony, his grandmother saw a baby snake. That is why Nageshwara Rao has been named. This naming tag continued as sentiment, Nagarjuna said.
After the birth of Chaitu, he was named as only Chaitanya. Then Nagarjuna mother called him and told to add Naga.. Nagarjuna explained this in an interview along with his sister Naga Susila.