Yathindra Pravana Prabhavam by Pillai Lokam Jeeyar is the earliest work on which scholars and historians rely for information for the biography of Manavala Mamunigal.

[3] Intending to fulfil the wishes of his acharya, Manavalan and his disciples left for Srirangam, spending some time at Srivilliputhur, the birthplace of Andal, on their journey.

Manavalan had to exert tremendous effort and bring to force his organizational skills to restore the original pristine glory for daily sacramental and festival procedures at Srirangam, without antagonizing the people who were functioning in different capacities at that point in time.

As a result of his devotion, Manavalan was put in charge of everyday temple administration, as well as anointed the leader for all the Sri Vaishnavas of his time.

At the request of his disciples to glorify the form of Vishnu at Kanchipuram, he composed the Devaraja Mangalam, which praises the glory of Varadharaja in thirteen verses.

The discourse took place at Yathothkari temple at Tiruvekkaa, where his idol is seen showing the vyakhyana mudra (the teaching gesture) to commemorate this event.

Manavala Mamunigal continued to live in Srirangam, and involved himself completely in writing commentaries for works of Pillai Lokacharya.

He wrote elaborate commentaries for three of Pillai Lokacharya's rahasya granthas (secret texts), namely Mumukshupadi, Sri Vachana Bhushanam, and Thathvathrayam.

Manavalan extolled the greatness of the Alvars and the acharyas who wrote commentaries on Tiruvaymoli in his Upadesa Ratnamalai, or the gem-studded garland of instructions.

This is a seminal work written by Alagiya Manavalaperumal Manavalan (Pillai Lokacharya's brother), which lays bare the philosophy and basic tenets of Sri Vaishnavism, with words chosen from Nammalvar's Tiruvaymoli.

When he became very ill, preventing him from worshiping at the temple, he dedicated one Tamil stanza a day, expressing to Ramanuja his anguish at staying in this world, and his eagerness to reach Vaikuntham.

[12] Archaeological and radar surveys in the Tiruvarasu area yielded conclusive evidence of his burial site along with locations of temples destroyed during invasions prior to his period.

[13][14] Manavalan's devotional practices towards Vishnu, especially the presiding deity of Srirangam, and the lineage of teachers like Ramanuja, left an indelible influence on his followers, numbering several millions throughout India.

[citation needed] The traditional Sri Vaishnava mathas at Srirangam, Tirumala, Kanchi, Melkote, Vanamamalai, Sriperumbudur, Alwarthirunagari, Srivilliputthur, and descendants of most of the Acharya Purushas follow and propagate Manavala Mamunigal's teachings.