Q. The river that flows through Salem, Namakkal, Dharmapuri , Nagapatinam and Thanjavur is

Answer of this question "The river that flows through Salem, Namakkal, Dharmapuri , Nagapatinam and Thanjavur is", here are 4 choices for this question : Vaigai, Kaveri, Thamirabarai, Cheyyar.
Answer Is "Kaveri".