Ravana grieves for Atikaya

A messenger went to Ravana and said your four sons and two brothers who had gone to war have fallen. Five were killed by Vanaras and one by Lakshmana.
Ravana was stunned for some time.
He asked the messenger to repeat what he had said, again. The messenger repeated what he said.
Ravana was in shock. What enemy was this, who had felled Kumbhakarna and Atikaya? Ravana said - My body burns and any eyes bleed to see my son Atikaya, the brave and noble one.

Thus Ravana spent the night crying. 

Atikaya falls

Vibhishana said this dark tall warrior is Atikaya, a son of Ravana and Malini. He is a very learned person and also a very strong and brave warrior. He can use all weapons and is skilled in them . Praying to Brahma he got many wonderful weapons and a chariot. he has an armor which is impenetrable. If he starts fighting all vanaras will be soon dead. To avoid that, you will need to do something fast.

Atikaya saw Vibhishana and bowed down to him. He said - Uncle, you are living and serving the great Vishnu. I want him to bless me.

Saying this, Atikaya took his chariot where Rama was. He said to Rama - Do not show pity on me. When all this is over, let me reside on your lotus feet.

Rama said You are a learned person. I will let you live along with Vibhishana, after killing Ravana.

Atikaya said There is no need of that. I want to die in the battlefield, after fighting you. I do not want to fight animals, and Lakshmana is young so I want to fight you.

Lakshmana said he wanted to fight.

Atikaya said You are too young. Lakshmana strung his bow and Atikaya was amazed to see his skill.

Atikaya agreed to fight Lakshmana on the condition that Rama and Vibhishana would judge who was a greater warrior.

Arrows started showering, with Lakshmana cutting off the arrows of Atikaya.

Pawana as a breeze whispered into Lakshmana's ears that he should aim for the armor of the demon.

Lakshmana then invoked a powerful weapon. Atikaya seeing that weapon come towards tried to cut it off, but he was unable to. Soon the arrow went and cut off his head.

As soon as the head fell on the ground, it started taking the name of Rama.

Vibhishana seeing this, said you were a great warrior and a great devotee. 

Atikaya enters the battlefield

Atikaya said a silent prayer to Rama. He did not want Rama to leave him, was determined to fight the battle.
He made a sound with his bow. So loud was the sound that the vanaras started running away.
He then said - Monkeys - Run form here. I am Atikaya, a brave warrior, who had fought and won battles in the three worlds. I am here to destroy my father's enemies.

Some vanaras went to Rama and told him about Atikaya.

Rama asked Vibhishana, who was this, who had come to fight.