How did Siva got the name Rudra?

How did Siva got the name Rudra?

At the time when Narayan was a child, he was sleeping on a leaf over the water which created the five senses. At sometime, the child opened his eyes. The universe which was all around him started to shrink and he started to grow. Suddenly, a lotus came from Vishnu's navel. From that BrahmaDev was born. Para Sakti gave the duty of creation to BrahmaDev. BrahmaDev's dearest children, the Sanal Kumarans, didn't appreciate his duty of creation. They started to rouse against it. BrahmaDev considered his children's behaviour as a disturbance. He became very very angry. He started to meditate inside the lotus. That meditation had only one thought.

" Someone should be born to help creation" that was the only thought going on in BrahmaDev's mind. Suddenly it happened. A light of the color blue and white started to spread in the middle of BrahmaDev who was deep meditating. A child was born from that unearthly light. He had the brightness and charm that would challenge the multimillion suns. The child rested on BrahmaDev's chest.

Suddenly the child started to cry. By saying "maruda.....maruda" BrahmaDev tried to stop the cry. The child stopped crying and asked.

"Lord, What is my name?"," You have born as a mighty God like me. Your should be named 'Rudra'. You will make everything fine and u will be also named as 'Siva'."BrahmaDev said.

By hearing these words, the child cried seven times more. BrahmaDev, again tried to calm him and said," Child, u again cried. You cried seven times more, therefore I am giving you seven more names. Bhavan, Sarvan, Eeshanan, Pashupati, Bhiman, Ugran, Mahadevan. By these names you will become famous". From that day on Siva became the third most powerful and the looked after the duty of destruction.