Cotton is one of India's most important commercial crops and plays a major role in supporting the textile industry and rural livelihoods. Although Bt cotton hybrids occupy more than 90% of the cotton-growing area, productivity under rainfed conditions remains relatively low because of moisture stress, pest pressure, and high cultivation costs. Samrat Bt (CICR-H Bt Cotton 63), developed by ICAR-Central Institute for Cotton Research (ICAR-CICR), Nagpur, is a newly released Bt cotton variety specifically designed for rainfed cotton-growing regions of South India. The variety combines early maturity, compact plant architecture, bollworm resistance, tolerance to jassids, suitability for High Density Planting System (HDPS), and good fibre quality. Samrat Bt provides stable yield performance under rainfed conditions while reducing dependence on insecticides and costly inputs. Its early maturity enables the crop to escape pink bollworm damage and terminal drought stress. The variety recorded superior yield and desirable fibre characteristics in multi-location trials across Karnataka, Telangana, Andhra Pradesh, and Tamil Nadu. Samrat Bt represents an important advancement toward climate-resilient, sustainable, and farmer-friendly cotton cultivation in South India.