 Modern scholarship posit Nimbarkacharya (c.7th century CE) to this period who propounded Radha Krishna worship and his doctrine came to be known as (dvaita-advaita).Vaishnavism in the 8th century came into contact with the Advaita doctrine of Adi Shankara.Many of the early Vaishnava scholars such as Nathamuni, Yamunacharya and Ramanuja, contested the Advaita Vedanta doctrines and proposed Vishnu bhakti ideas instead.