Feeling that there is something wrong, he set a fire and directed them to come to him by crossing the fire one by one, cautioning them that only his real children would be able to pass it unharmed.
Later, when the boys went to meet king Rama, he was surprised to see three of them there. Valmiki understood what happened, explained it to Sita and on his request, she began bringing up the new boy also as her own son, along with her two sons. When Sita returned soon with the real Kush, she was surprised to see a similar looking new boy in the ashram. As he could not locate him anywhere in the ashram, he immediately created a Kush duplicate, with the help of the sacred Kusha grass. When the sage finished his meditation, he found Kush missing. She did not want to disturb the sage who was lost in contemplation and hence, took Kush quietly with her, back to the forest.
When she returned shortly, she found Valmiki in deep meditation in his ashram and her two boys around him.
One day, Sita had to go to the forest for a short while and left her children in the custody of the sage. Sita lived in the ashram of the great sage Valmiki, and there, she delivered twin boys. Lord Rama, sometime after his coronation as the king of Ayodhya, had to send his pregnant wife Sita to a forest, when one of his citizens cast aspersion on her character. There is an interesting legend, which links Karuppasamy with the epic Ramayana.
