Question

Which of the following are tributaries of the west flowing rivers of the Peninsular India? \[ \begin{aligned} A.&\ \text{Tawa} B.&\ \text{Purna} C.&\ \text{Penganga} D.&\ \text{Hiran} \end{aligned} \] Choose the correct answer from the options given below:

• A. A, B and C only
• B. A, B and D only
• C. B, C and D only
• D. A, C and D only

Hint:

Important tributaries: \[ \boxed{ \begin{aligned} \text{Narmada} &\rightarrow \text{Tawa, Hiran}, \text{Tapi} &\rightarrow \text{Purna}, \text{Godavari} &\rightarrow \text{Penganga (via Wardha)}. \end{aligned} } \] Mnemonic: “Tawa, Purna and Hiran flow West.”

Answer 1

The Correct Option is B

Concept: West-flowing peninsular rivers include the Narmada, Tapi, Mahi, Sabarmati and Periyar systems. Their important tributaries include Tawa (Narmada), Purna (Tapi), and Hiran (Narmada). Penganga is a tributary of the Wardha River, which ultimately joins the Godavari, an east-flowing river.

Step 1: Evaluate each river. \[ \begin{aligned} A.&\ \text{Tawa} \rightarrow \text{Tributary of Narmada (West-flowing).} B.&\ \text{Purna} \rightarrow \text{Tributary of Tapi (West-flowing).} C.&\ \text{Penganga} \rightarrow \text{Tributary of Wardha--Godavari (East-flowing).} D.&\ \text{Hiran} \rightarrow \text{Tributary of Narmada (West-flowing).} \end{aligned} \]

Step 2: Identify the correct combination. \[ \boxed{ A,\ B,\ \text{and}\ D } \] Hence, \[ \boxed{\text{(B)}} \]