His writings include devotional works on deities and Acharyas, treatises on Vishishtadvaita, commentary on the Bhagavad Gita, secret doctrines of Vaishnavism, original Tamil poems, epic poems and allegorical dramas in Sanskrit, dialectical works such as Satadushani directed against rival religious schools , treatises on daily life and several other miscellaneous treatises. His gloss on the meanings of the Vedas, reconciling the teachings of the Alvars and the Prasthanatrayi created history because it exposed the Divya Prabhandham of the Alvars to a much wider audience and elevated it to a status equivalent to that of the Vedas in the eyes of the Tamil Vaishnava people. As a critic, he was as searchingly critical as he was sympathetically tolerant. He ennobled his poetry through philosophy and embellished his philosophy through his poetry. He preached only what he practised and practised what he preached. He was a saint par excellence though he remained a Grihasta throughout. It is difficult to find such a harmonious blend - of Precept and Practice, of Exalted thinking and Simple living. He synthesised in himself an inimitable moral fervour and an inspired spiritual insight. His works could be broadly classified into the following groups :
VEdanta granantams (philosophical works)
As ordered by Udaiyavar ( Sri Ramanuja), Swami composed 15 Vedanta Granthas like as following :
sESwara mImAmsa, SatadhUshaNi, adhikaraNa sArAvaLi, tattva tIka, nyAya pariSuddhi, nyAya sidhdAnjanam, tattva muktA kalApam, nikshEpa raksha, saccharitra raksha, vaditraya khaNDanam, dramidOpanishath tAtparya ratnAvaLi, dramidOpanishath sAramvyAkyA grantams (treatises)
chatuSSlOki bhAshyam, stOtra (ratna) bhAshyam, rahasya raksha, gItArtha sangraha raksha, tAtparya chandrikA, ISAvAsya-upanishad bhAshyam sarvArtha sidhdi, adhikaraNa darpaNamnAtaka grantam (plays) sankalpa sUryOdayam
kAviya grantams (poetry works)
SubhAshita nIvI, yAdavAbyudayam, pAdukA sahasram, hamSa sandESamanushTAna grantams (religious regular practicals)
bhagavath AarAdhana vidhi, yagnyOpavIta pratishTARahasya grantams (works on eternal secrets)
sampradAya pariSudhdi, tattva padavI, rahasya padavI, tattva navanItam, rahasya navanItam, tattva mAtrukA, rahasya mAtrukA, tattva sandESam, rahasya sandESam, rahasya sandESa vivaraNam, tattva ratnAvaLi, tattva ratnAvaLi pratipAdya sangraham, rahasya ratnAvaLi, rahasya ratnAvaLi hrudayam, tattva traya chulakam, rahasya traya chulakam, abhaya pradAna sAram, rahasya SikhAmaNi, anjali vaibhavam, pradAna Satakam, upahAra sangraham, sAra sangraham, muni vAhana bhOgam, madhura kavi hrudayam, paramapada sOpAnam, paramatha bhangam hastigiri mAhAtmyam, SrImath rahasya traya sAram, sAra sAram, virOdha parihAram, nigama parimaLam, tirumudi adaivuTamizh prabandams (works in Tamil language)
amruta ranjani, adhikAra sangraham, amrutAswAdini, parama pada sOpAnam, para matha bhangam, mei-virata mAnmiyam, adaikalappattu, aruttapanchakam, SrI vaishNava dinachari, tirucchinnamAlai, panniru nAmam, tiru-mantra churukku, dwaya churukku, charama SlOka churukku, gItArtha sangraham, mumkaNi kOvai, nava maNi mAlai, pantu kazhal ammAnai Uusal Eesal prabanda sAram, AahAra niyamamStotra grantams (works of divine hymns of praise)
During his stay in Kanchipuram, Swami took the opportunity to visit several shrines in and near Kanchi and composed lyrics of incomparable beauty on the Lords in the various shrines. Swamy personally involves himself in enjoying the divine beauty of the Lord of Kanchipuram known by name Sri Varadharaja Perumal in most of his works. Many of the following hyms are composed by Swamy in Kanchipuram and in ThiruvahindrapuramSrI hayagrIva stOtram, daSavatAra stOtram, bhagavath dyana sopanam, gopala vimSati, SrI stuti, bhU stuti, gOdA stuti, nyAsa daSakam, dayA Satakam, abhIti stavam, dEva nAyaka panchASath, varadarAja panchASath, yatOktakAri stOtram, ashTabhujAshTakam, kAmASikAshTakam, paramArtha stuti, SaraNAgati dIpikA, acchyuta Satakam, dEhaLISa stuti, nyAsa tilakam, mahAvIra vaibhavam, sudarSanAshTakam, shOdasAyuda stOtram, garuda dandakam, garuda panchASath, yatirAja saptati, vairAgyapanchakam, nyAsa vimSati
Legend says that when in Srivilliputtur, he composed "Godha Sthuthi", the presiding Deity of the town Sri Andal was so pleased that she ordained that the Stotra should be recited during her Utsavam days along with Divya Prabhandams. To this day, this recitation is being followed in Srivilliputtur.The said "Godha Sthuthi" remains as a Suprabatham for Sri Andal. In glorifying this Aacharya there is a very big shrine dedicated for Vedanta Desika in Srivilliputtur and a separate festival for 10 days is being celebrated till today in the name of "Sri Gotha Sthuthi Uthsavam" in Srivilliputtur