Today is the Thirunakshatram of Sri Uyyakondar. Sri Uyyakondar was a primary sishya of Sri Nadhamunigal along with Sri Kurukai Kavalapar. Sri Nadhamunigal gave the duty of spreading Sri Vaishnavam through his two main disciples.
Sri Nadhamuni had two important treasures with him. (1) The secret of Bhakti Yoga to attain praapthi (This will save the Abyhasaha. ie., practicing person) and (2) Nalayira Divya Prabhantham. When Sri Nadhamuni turned to ask Pundareekaakshar, he immediately replied, “Pinam kidaka manam purivar undo???”(ie, Will anybody marry when there is an occurrence of death in the residence?). He meant that when the entire world seems to be doomed in Samsaaram (Dhukka Suzhalai !), what is the use for just one soul alone reaching the Lord by practicing Bhakti Yoga. Hence he told Sri Nadhamuni,”Let whatever happens to me let it happen, but please teach me the secret that can deliver the entire world to the Lord”.
Nadhamuni unable to explain the generosity shown by Pundareekaakshar, praised his determination and kindness towards mankind and said “Neerae ulagayum ulagi udaya Sriman Narayananyum Avanai sollum Arulisaelaikalayum avatrai paettra adiayenayum Uyyakondavar” (ie., You are the only one who came to redeem the world and The Lord who has the world and the holy hymns which praise The Lord and myself who preach those hymns).
During his last days, Sri Nadhamunigal had requested Swamy Uyyakondar that a grandson would be born to Easwara Munuigal (his son) and he must be well equipped with all Sastras of Srivaishnavam. But before his life time swamy Uyyakondar could not do so and he attained the abode of heaven. But before attaining paramapatham, Swamy requested his disciple Sri Manakkal Nambigal, to fulfil his desire. It is said that Uyakkondar lived for 105 years.
Written with reference from http://srirangapankajam.com/Archive_TN_Uyyakondar.aspx and http://chetanan.com/?p=52