Kabir

Ravidas

Nanak

Meera

Ramanand

Dadu

Raghunandan

Tukaram

Opposed the practice of image worship.

Advocate the austerities preached by the Buddhist and Jains

Preached personal devotion of God as a means of salvation.

Stressed the rigidities of traditional rituals.

Ramanuja

Shankaracharya

Kapila

Madhwa

Kabir

Raskhan

Bihari

Surdas