Kerala Tourism Photos - Bharathapuzha Bharathapuzha known as river Nila and Bharathapuzha means river of Bharata. Bharathapuzha is in kerala which is a state of Kerala. Bharathapuzha has a length of 209km and it is the second-longest river in Kerala. The first is for the Periyar river. Bharathapuzha's another name 'Nila'