In the holy abode of the Lord kayilai the Mother of the Universe shakti heard from the pashupati the holy AgamAs. As the God said that the truth of the AgamAs that is pleasing for Him is the worship, the Goddess got interested to worship the Lord in the Agamic way. She conveyed to the Lord - the essence of the AgamAs, her growing wish to worship Him in the great Agamic way He just explained. The Lord of everything blessing Her wish asked Her to do the worship in kAnychi at the place where He has taken abode beneath the mango tree. The Supreme's shakti who is the power behind every action and who is base for the existence of this entire world started in the deep-rooted love to salute the Lord praised by scriptures.
The Goddess came accompanied by creatures and celestial powers to kAnychi. The serpent padhuma mA n^Agam received Her, keeping Her feet praised by braHmA and vishNu on its head, requested Her to stay in the hole-pit it resided. Staying there growing the pleasure and love of the lives, the Lady praised by vEdhAs looked for the mango tree the beneath which the Form of Lord she wanted to worship was supposed to be there. She could not find the one. She decided to do thapas to see Him. With the heart looking forward only to see the Unique Lord, with the sacred words emerging out becoming only the Holy Five Letters, the tender budlike hands folded in the posture of salutation the Mother did the marvelous thapas. The one difficult to be seen by even long austerities appeared in front of the Goddess of immense power devoid of vengeance in the root of a mango. On this sight the Goddess was pleased and as a spring that opened up she went in all Her devotion to worship the Lord by the holy way described in the AgamAs.
With the truth of the AgamAs staying in the thoughts She went to bring the flowers for the worship with Her accompanists carrying the basket. With the fresh water of the river kambai bathing the Lord in love, adorning with paste and flowers, showing the pleasant smokes and decorated lights to the Supreme Luminance, the Queen of the womenfolk, worshiped on the basis of AgamAs with the pure devotion. This splendid worship for the Lord who sits in yOga grew day by day. One day in His play of blessing the Lord who contained the deluge like water of ganga in His Matted Hair made the river kambai to flood. The water swept away the banks and was rushing fiercely near the bank where the graceful Goddess was involved with the worship. The first devotee of the Lord who secures the entire world was alarmed at the raising water in order to prevent it from entering the holy place where the Lord was. She tried to stop the surge with Her hands. What in the world could not stop for Her hand movement, but this flood of grace in His play did not stop and surged ahead. The Lady of great love, who set the example of a real ardent devotion hugged the Lord. That Devotee of peerless love, held tight in anxiety the Lord within Her breasts, bangled hands and the face, arresting the Lord in Her wonderful devotion.
The Lord who is above all the forces reformed His form to the force of Her love. The pleased Lord who was worshiped by the shakti in real love the cream of the Agamic worship offered to present the boons She wanted. The Goddess who exemplified for loveful worship humbly said that the worship that was yet to be completed and pleaded Him to accept it completed. The Lord who is love Himself said Her worship for Him never ends. The Mother asked the Lord to enjoy in Her worship everyday, and asked the boons of doing in that place the good deeds and charities for the benefit of the world and blessing the devotees of the town. Goddess took abode in the kAmakOttam driving away the sins of the saluters and bringing them to the path towards the Truth.
This incident is narrated in the thirukkuRipputh thoNda n^AyanAr purANam of periya purANam. This chapter descries in detail the glory of kAmakOttam and kanychIpuram.