 The Vaishnava movement in the Kannada @-@ speaking regions found momentum after the arrival of the philosopher Ramanujacharya ( <unk> – 1137 ) . <unk> possible persecution from the Chola King ( who was a Shaiva ) , Ramanujacharya sought refuge initially in <unk> and later moved to <unk> . But this event had no impact on Vaishnava literature in Hoysala lands at that time . However , the teachings of Madhvacharya ( <unk> – <unk> ) , <unk> of the Dvaita philosophy , did have a direct impact on Vaishnava literature , in both the Sanskrit and Kannada languages . This body of writings is known as haridasa <unk> ( haridasa literature ) . 
