The I-League is a professional football league in India, established in 2007. It serves as one of the top tiers of Indian football, featuring clubs from various regions of the country. The league operates on a promotion and relegation system with the I-League 2nd Division, allowing teams to move between divisions based on their performance. The I-League has played a significant role in developing football in India, providing a platform for local talent to showcase their skills. It has also contributed to the growth of the sport's popularity, with clubs like Mohun Bagan and East Bengal having a rich history and passionate fan bases.