A Bhakti saint 'X' was a famous Indian poet-saint revered by Hindus, Muslims, and Sikhs alike. 'X' was a student of another prominent Bhakti saint 'Y', and spent most of his time at Varanasi. Just like his Guru, 'X' also preached in Hindi. Identify 'X' and 'Y', respectively.
'X' is Kabir and 'Y' is Ramanand. Ramanand's original had 12 disciples included at least one woman, members of the lowest castes including the leather worker Ravidas, and a Muslim mystic Kabir. Kabir, was a famous Indian poet-saint revered by Hindus, Muslims, and Sikhs alike, and famous for Kabir bani. So, X is Kabir and Y is Ramanand.