Which of the following river does not belong to the west-flowing rivers group ?

PYQ UPPSC LT Grade (Assistant Teacher) 2025· Modified — slightly modified from the official paper; see the solution

1. A.

   Ponnaiyar

2. B.

   Periyar

3. C.

   Savitri

4. D.

   Mahi

Attempted by 24 students.