YAdavaprakAsar as disciple
YAdavaprakAsar's mother was very devout and prayed religiously to the Lord. She heard about RAmAnujar's merits every single day and one day wished fervently that YAdavaprakAsar reacquaint himself with RAmAnujar and become his disciple. As she was thinking this, she heard voices that seemed to confirm that it was a ferry good thing. She immediately summoned her son and told him about what she felt and what had happened just then. She requested that he go and join RAmAnujar and embrace the sigai, tridandam and yagnyopavItam. YAdavaprakAsar was very much opposed to the idea as he ran all the previous disputes between them in his mind. However, he also started recounting the greatness and miracles of RAmAnujar. It did not take him very long to get convinced that he should indeed join him as his disciple. But as was the custom of AachAryAs following Advaita, he did not have a kudumi or yagnyopavItam. So in order for RAmAnujar to accept him, he would have to go around the whole earth once. But he was riddled with old age and felt that it would not be possible for him to undertake a journey of such magnitude. That night, PEraruLALan appeared in his dream and conveyed that going around RAmAnujar once was equivalent to going around the entire world.
Accordingly, the next morning YAdavaprakAsar went to Tirukkachchi Nambi and narrated his desire and the Lord's solution to attain it. Nambi went to Arul Varadan's sannidi to confirm that going around RAmAnujar once would suffice and PEraruLALan came back with the same notion. YAdavaprakAsar hastened to RAmAnujar and conveyed his wishes to him. RAmAnujar was pleasantly surprised and did the needful for him. He named him "GOvinda JIyar" and gave him the tiridantam, yagnyOpavItam and the saffron clothing of an ascetic. He asked a favor of the newly appointed GOvinda JIyar - and that was to write a narrative for Yuti darmam. According to his wishes, he wrote "Yatidharmasamuchchayam" and offered it to the feet of YatirAjan. RAmAnujar blessed him in every way.
In KAnchI, YatirAjan taught MImAmsA and the SAshtrAs to the disciple who embraced him; namely KUraththAzhvAn and MudaliyAndAn among others. All the Vaishnavaites in SrI Rangam were very happy on hearing this. Under the supervision of Periya Nambi, it was decided that RAmAnujar should be brought to the periya kOil to carry out his immense services to mankind. TiruvarangaperumAL Arayar was chosen for this purpose.
Arayar agreed to carry out this task and left for PerumAL kOil. He reached KAnchI in a few days. He had the good fortune of getting the darshan of "VENdubavar VENdiyadai VIzhaindaraulum" Arul Varadan in the midst of the PuNyakOti vimAnam at kachchivAiththAn mandapam.Here he started reciting AalavandAr's sostraratna ShrI Sukti. In a melodious voice, he sang AazhvAr's compositions like "En NenjamE YAn". The Lord was moved by his bhakti and appeared before him and asked him what he wished. Arayar indicated that he'd very much like for RAmAnujar to come and stay in ShrI Rangam and bless his disciples from there. PEraruLALan agreed and ordered RAmAnujar to do the same.
Thus, by the will of God, YatirAjar decided to go to Tiruvarangam. He appointed KUraththAzhvAr and MudaliyANdAn t take care of the daly rituals for the Lord. As soon as they came to the temple, he left directly for ShrI Rangam without even going back to his matam one last time. Tirukkachchi Nambigal saw them off.
RAmAnujay settled in Tiruvarangam, thus. He finished anushtAnams in Vada Tiru KAvEri and wanted to do mangaLAsAsanam for Periya PerumAL. HEaring of this intent, the Vaishanavaites who were around rejoiced and brought Periya Nambigal there. RAmAnujar received all the blessings of the Lord, including TIrtam and SadAri. From there he went to the temple and sought blessings from SrI Ranga NAchchiyAr, Azhagiyasingar and finally went to Azhagiya MaNavALan sannidi. Near the TirumaNa pillars, he narrated AmalanAdipirAn's pAsurams and was very happy in holy bliss.
PerumAl appeared before him that very instant and gave him the gift of "Upaya VibhUti Aishvaryam" (The wealth of knowledge in this world and the one beyond) and commanded him to take control of the temple activities from then on. HE gave him the special title of "Nam Udayavar". Udayavar went to Periya Nambi and thanked him after acknowledging that it was by his grace that he received all these chpoicest blessings. "PeriyAk KAtpattakAl PerAda paean PeralAmandro"? He owed his gift of LilA VibhUti and Nitya VibhUti to Nambigal. The daily proceedings in the temple went on very smoothly from that day on. He appointed AgaLanganAttAzhvar as his disciple at the temple for carrying out these daily duties.