The South-West Monsoon period, also known as the rainy season, typically lasts from June to September in India. During this time, moisture-laden winds blow from the Arabian Sea and the Bay of Bengal towards the Indian subcontinent, bringing widespread rainfall to most parts of the country. Its importance lies in providing the majority of annual precipitation, which is crucial for filling reservoirs, irrigating agricultural lands, and replenishing groundwater, thereby sustaining the country's economy and ecosystems.