srI:
srImathE satagOpAya nama:
srImathE rAmAnujAya nama:
srImadh varavaramunayE nama:

There are several sannidhis and uthsavams that happen for the emperumAns, AzhwArs and AchAryas in this dhivya dhEsam.

First, inside the temple:

• Presiding deity
  • Adhi kEsava perumAL with srI dhEvi and bhU dhEvi nAchiyArs
  • emperumAnAr (also known as iLayAzhwAr, rAmAnujar, srI bhAshyakArar, etc)
• thanikkOyil nAchiyArs (separate thAyAr sannidhis)
  • yathirAja nAtha valli thAyAr
  • ANdAL
• srI rAma parivAr
• sEnai mudhaliyAr
• AzhwArs
• nammAzhwAr, madhurakavi AzhwAr and  nAthamunigAL (in nammAzhwAr sannidhi)
• ALavandhAr
• thirukkachi nambi (kAnchI pUrNa)
• nampiLLai
• vEdhAnthAchAryar

Outside the temple:

• thiruvadi (hanumAn – separate temple)
• emperumAnAr thiruvavathAra (birth) maNdapam – 74 simhAsanAdhipathis appointed by emperumAnAr (with proper prathishtA)
• kUrathAzhwAn sannidhi (separate temple)
• maNNaLantha perumAL (in mAmunigaL temple)
• piLLai lOkAchAryar (in mAmunigaL temple)
• maNAvALa mAmunigaL (separate temple)
• ponnadikkAl jIyar (in srI vAnamAmalai mutt)
• prathivAdhi bhayankaram aNNA (separate temple with yathOkthAkAri perumAL (uthsavar) and ubhay nAchiyArs, kaNNan/ANdAL and aNNA mUlavar/uthsavar)
• Adhi yathirAja jIyar (in yathirAja jIyar mutt)
• appan thiruvEnkata embAr jIyar (embAr jIyar mutt)

Uthsavams

• chithrai
  • theppOthsavam – 5 days
  • Adhi kEsava perumAL  brahmOthsavam – chithrai sravaNam – 10 days
  • emperumAnAr avathAra uthsavam – chithrai thiruvAdhirai – 10 days

• vaikAsi
  • nammAzhwAr avathAra uthsavam – vaikAsi visAgam – 10 days
  • jyEshtAbishEkam- vaikAsi/Ani
  • vasanthOthsavam (spring festival) – vaikAsi/Ani – 5 days

• Ani
  • kOdai uthsavam (summer festival) – Ani paurNami

• AvaNi
  • pavithrOthsavam – 5 days
  • srI jayanthi – vENugOpAlan sannidhi thirumanjanam

• Adi
  • ANdAL avathAra uthsavam – thiruvAdi pUram – 10 days (iyaRpA in puRappAdu and thiruvAimozhi gOshti inside the temple)
  • ALavandhAr avathAra uthsavam – Adi uthrAdam – 10 days (thiruvAimozhi gOshti inside the temple)
  • prathivAdhi bayankaram aNNA – Adi pUsam/pushyam – thirunakshathra mahOthsavam – @ aNNA sannidhi – kOil thiruvAimozhi, rAmAnusa nURRanthAdhi, upadhEsa rathina mAlai gOshti and sARRumuRai

• purattAsi
  • vEdhAnthAchAryar avathAra uthsavam – purattAsi sravaNam – 10 days (thiruvAimozhi gOshti inside the temple)
  • ponnadikkAl jIyar avathAra uthsvaam – purattAsi punarpUsam at srI vAnamAmalai mutt
• aippasi
  • mAmunigaL avathAra uthsavam – aippasi thirumUlam -10 days
  • piLLai lOkAchAryar avathAra uthsavam – aippasi thiruvONam – 3 days
  • navarAthri uthsavam – 9 days

• kArthigai
  • vanabOjana uthasvam – kArthigai thiruvAdhirai – 1 day
  • thirumangai AzhwAr , nampiLLai avathAra uthsavam – kArthigai kArthigai –  10 days

• mArgazhi
  • adhyayana uthsavam – 20 days
  • ANdAL nIrAtta uthsavam – mArgazhi last 10 days
• thai
  • sankarAnthi
  • kanu pAr vEttai
  • thirumEni (vigraha) prathishtai – guru pushyam (thai) – 3 days
  • kUrathAzhwAn – avathAra uthsavam – hastham – 3 days (thiruvAimozhi recital at AzhwAn sannidhi)
• mAsi
  • mAsi magam – 5 days – thIrthavAri at lake on magam
  • thirukkachi nambi – avathAra uthsavam – 10 days concluding on mrgasIrsham
• panguni
  • srI rAma navami – panguni
  • panguni uthram – 1 day

• Other AzhwAr/AchAryas avathAra uthsavam – 1 day