Sri Vedantha Desikar lived before the time of Sri Manavala Mamunigal. If Sriman Narayana desired it, He would have made "Ramanuja Dayapathram" as the only Thaniyan. But if after the time of Sri Vedantha Desikar, 'Sri Saile Dayapathram" was proposed by Sriman Narayana, every one should accept. Sri Vedantha Desikar created parrellel Prabandhams and Vazhithitunamam which paved way for serious division of Sri Vaishnavites. Sri Vedantha Desikar did not take to Sanyasaashrama.