I was reading a biographical sketch on Chaitanya Mahaprabhu on this site:-http://harekrishnacalendar.com/vaishnava-calendar/gaura-purnima-2014/
and these lines particularly struck me "At Rangaksetra He stayed for four months in the house of one Venkata Bhatta in order to spend the rainy season. There He converted the whole family of Venkata from Ramanuja Vaisnavism to Krsna-bhakti".
I had read that Ramanuja sampradaya in South is among the four recognized parampara sampradayas.....along with our Gaudiya Vaishnavism........so i was wondering why Mahaprabhu had to convert the bhatta family to krishna bhakti.......
Is Ramanuja vaishnavism not Krishna/Vishnu Bhakti?
Kindly explain in this regard.........and my apologies if i have erred in any way.