…………………….is the fourth longest river in Kerala at 169 km in length. May 3, 2021 by admin Question: …………………….is the fourth longest river in Kerala at 169 km in length. A. bharatapuzha B. periyar C. chaliyar D. manjeswaram river Answer» c. chaliyar Note: The above multiple-choice question is for all general and Competitive Exams in India.