Lord Ayyappan

King Rajasekara
The descendants of Pandya dynasty were living scattered in places like Valliyur, Tenkasi, Shengottah, Achankovil and Sivagiri and in parts of Travancore, where they were the ruling dynasty. The descendants of Pandya dynasty belonging to Chempazhanattu Kovil, living in Sivagiri were given the right to rule the country of Pandalam, by the King of Travancore eight hundreds years ago. King Rajasekara was the direct descendant of this dynasty.
King Rajasekara was a very talented, courageous and just ruler in all his dealings. People were living happily and prosperously during his regime. However, the king was very unhappy that he had no children and his subjects were also worried that he had no heir to inherit his kingdom. As per the wish of the queen, both of them prayed to Lord Shiva for blessing them with a child.

Ayyappan
ord Shiva, answered Rajasekara's prayer and ordered Dharmasastha to take the avathar of Ayyappan . Ayyappan took the form of a baby with a golden chain and bell around his neck and placed himself near the Pamba river.
(Dharmasastha born to Lord Shiva and Lord Mahavishnu who was in the disguis of Mohini to get back the Amrutham from the asuras and restore to the devas.)
King Rajasekara who was returning after hunting in the forest adjoining the banks of River Pampa, along with his men, heard a child crying from somewhere in the forest. Surprised, he went round and reached the banks of River Pampa. There he saw a beautiful and divine child (i.e. Ayyappa) kicking its legs and crying out, and was in a dilemma whether to take the child to the Palace or leave it there itself.
While the King was engrossed in his thoughts, a Sanyasi (Yogi) appeared before him and told the King that he need not be afraid of the child and take him to the Palace and that the child belonged to Kshatriya dynasty capable of mitigating all sufferings. The Sanyasi further stated that since the Child had a gold bell around his neck, his name be called "MANIKANDAN" and when the child completed twelve years, the King would know his divine history. After uttering these words, the Sanyasi disappeared.
The King of Pandalam was very joyous; he took the child to his Palace and briefed the Queen about the incident. The King and the Queen, having prayed to Lord Shiva, for a child, were very happy that they had been blessed with a child. The people also felt happy that a heir to inherit the Kingdom after the King, had been found.
The Diwan
However, the Diwan of the Kingdom who was thinking that he would be the next crown after Rajasekara was worried.
The Study period of Ayyappan
He was taught all martial arts and sastras and the Guru was surprised at his brilliance and agility and the extraordinary talents. The Guru came to the conclusion that he was not an ordinary child, but a divine power. After completing his education under the Guru, Manikandan approached the Guru to offer his Guru Dakshina.
When Manikandan went to his Guru for his blessings, the Guru told him that he already knew that he was a divine power and he was blessed for having been given an opportunity to have Manikandan as a student. The Guru further told Manikandan that he had one request to make and that was that his only son who was dumb should be given the ability to speak. Manikandan called the Guru's son and put his hands on his head and immediately there after the Guru's son began to speak. Manikandan requested the Guru not to reveal this to anyone and went to the Palace.
Birth of RajaRajan
In the meanwhile, the Queen gave birth to a male child and the child was named RajaRajan.
Enthronement
King Rajasekara, impressed with the talents of Manikandan, decided to crown him, treating him as his eldest son. He ordered the Diwan to make arrangements for the same.
The Diwan's plot
The Diwan started devising plans to prevent Manikandan from being crowned to the throne and to annihilate him. He tried various methods including poisoning of food, but failed in all these. However, Manikandan's body bore an injury due to these and ordinary physicians could not cure it. Lastly, Lord Shiva disguising himself as a physician, treated Manikandan's injury and cured him.
Having failed in all his attempts to kill Manikandan, the Diwan approached the Queen and told her that as she had her own son, it was not correct to crown a person who came from the forest. He further told the Queen that since Arthasastra itself has justified any misdeed if it was done to extract a good thing, he would suggest that the Queen should pretend as if suffering from severe headache and stomach pain and he would make the physician tell that only a tigress' milk should be brought to cure the Queen and since Manikandan would only go to the forest to bring the milk, he would be in danger from the wild animals and even if Manikandan returned without bringing the tigress' milk, the King's love for him would not be as before. The Queen, became a prey to the Diwan's plot and agreed to do what he told, so that her son could succeed the King to the throne.
The queen's sickness
The Queen, as told by the Diwan, cried out loudly that she was suffering from severe headache and stomach pain and the King, believing this, called the Diwan to bring in the best physicians to treat her. The Physician, brought by the Diwan examined the Queen and told the King that the Queen had been suffering from a dangerous disease and it could be cured only by applying Tigress' milk .The King sent several of his men to the forest for bringing this milk. The King understood that it was an impossible task and wanted his dear Queen to be cured at any cost and offered half of his Kingdom to anybody who brought the Milk.
Manikandan's persistence
Manikandan asked the King to let him go to the forest promising to bring the milk. However, the King told him that he was awaiting to be crowned to the throne that he was also not of age and hence refused to let him go. Manikandan told the King, in spite of his refusal, he had to go lest he would be cursed for not curing the Queen. Since the King persisted in his refusal Manikandan wanted the King to promise to do something he wanted. The King gave the promise and asked him what he wanted and immediately Manikandan asked the King to permit him to go to the Forest. The King felt disappointed that he had been tricked and with no other alternative permitted Manikandan to go to the forest.
The arrangements
King Rajasekara made arrangements to send a group of his loyal men along with Manikandan, which however was refused by Manikandan on the ground that the tigress might run away seeing the crowd of soldiers.
King Rajasekara sent along with Manikandan necessary foodstuffs and coconuts with three-eyes, in remembrance of Lord Shiva. The Panchabuthas, sent by Lord Shiva, accompanied Manikandan to Forest.
Visiting Devaloka and destroying Mahishi
However, on his way Manikandan, came to know the atrocities of Mahishi in the Devaloka, he went there and fought a battle with Mahishi. During the conflict, Manikandan threw Mahishi down to earth from devaloka and she fell on the banks of Azhutha River. Manikandan clashed with her at Azhutha river again. At the end, of the battle between Mahishi and Manikandan at Azhutha River banks, Manikandan climbed up on her chest and danced violently. The impact of his dance was felt on the Earth and Devloka and the Devas were afraid. Mahishi knowing that the divine power dancing on her body was none other than the son of Hari and Haran, prostrated before Manikandan and died.
(Mahishi- blessed by Lord Brahma that nobody , except the son created out of the union of Vishnu (Hari) and Shiva (Haran), would be able to kill her. She wanted to take revenge upon the devas who killed her brother)
Malikapurathu Amma
This dance was witnessed by Lord Shiva and Mahavishnu from a place called Kalakatti. (It is said that Leela, daughter of Kavalan, a Maharishi, due to her husband's curse,was born as daughter of Karamban, with a face of Mahishi and freed herself from the curse and obtained Moksha by the grace of Shri Dharmasastha, which is described in Sabarimala Temple as Malikapurathu Amma, by which name she has a temple there)