When SrinivAsarAghavan swami received the "ThirumaNN katti", He looked at it and took it to his gruham and applied "Sri ChoorNam" to it and wrapped the "ThirumaNN katti" back into banana leaf and prayed to the disciple to hand it over to Srimath pEriAndavan.
When the disciple went back and reported the incident to Srimath pEriAndavan, pEriAndavan was very much pleased and decided that SrinivAsarAghavan swAmi was the right person to succeed Him as the AchAryA of the pEriAsramam. In the meantime, pEriAndavan's health deteriorated.
After a few days, SrinivAsarAghavan swAmi went back to Srirangam from vELianallur and prostated before srimath pEriAndavan and prayed to him that he be granted sanyAsA. With great modesty, he went through the explanation of qualification of oneself to take up sanyAsA thereby indicating his readiness for the same. Like Vibheeshana's conversation with Lord Sri Rama, swAmi told srimath pEriAndavan that he did "Sarvasanga parithyAgam", completely renouncing samsAra bhandham and prayed to Srimath pEriAndavan to grant Him sanyAsA. Srimath pEriAndavan was filled with extreme happiness to have chosen the right successor and granted SrinivAsarAghavan swAmi , sanyAsA on an auspicious day. He was given the title "Sri PAdukA sEvaka rAmAnuja mahA dEsikan".