Explain why Godavari and Krishna are non‑perennial?

Godavari and Krishna Rivers: Non-Perennial Nature

• Seasonal flow: The Godavari and Krishna rivers are non-perennial because their flow depends entirely on the monsoon rains. They originate in the Peninsular Plateau and are not glacier-fed, so their water levels drop drastically during dry months.
• Dependence on monsoon: Unlike the Himalayan rivers that receive water from melting snow and glaciers, these rivers rely only on seasonal rainfall for their flow.
• Origin and climate: Both rivers start from the Western Ghats and flow across the Peninsular Plateau, a region with clearly defined wet and dry seasons, affecting their water availability.
• Flow variation: During the rainy season, these rivers swell due to heavy rainfall, but in the dry season, as rain stops, their flow reduces sharply—sometimes leaving parts of the riverbed completely dry.