He was the first to introduce Radhamadhav cult which was centered n the worship of Radha and Madhav
He founded the philosophy called Dwita Advaita. It was centered on the balance between Advaita and Visishtadvaita.
He wrote Dashasloki and Vedanta
He was also a prominent astronomer
Its philosophy held that men were trapped in physical bodies constricted by prakrti(matter) and that only by surrender to Radha-Krishna (not through their own efforts) could they attain the grace necessary for liberation from rebirth; then, at death, the physical body would drop away.