Teertha Prabandha
Soon after taking sanyasatva, Rajaru, embarked on a teertha yatra. A one of it's kind yatra, one that would go on to be the world's first recorded 'travelogue'.
Before leaving on his yatre, Rajaru took permission from his mother. On her insistance, he also gave her a vigraha of himself, which even till date is worshipped at the mutt.
Starting from Udupi, Vadiraja covered West India(Pushkar), Norther India(Badari), East India(Kumbhakona) and South India(Ananthashayana). Mere reading of his grantha - Teertha Prabandhana grants one immense punya.
More on his momentous grantha here.