National Football League (India)
The National Football League (commonly known as the NFL) was an association football league competition in India between 1996 and 2007 which was organised into three divisions. The league is now transformed into the I-League and continues with that name. The "Premier Division" of the league was first introduced in 1996, though the country already had a long history in the sport thanks to the likes of the IFA Shield and the Federation Cup. In fact, the Santosh Trophy (started in 1941) was the top football competition in the country before the then National Football League started.
Football in India
Calcutta Football League (CFL) is the football league system where several football clubs of the Indian city of Kolkata (Calcutta) participate. It currently consists of six-tier pyramid system. Indian Football Association (IFA) conducts the CFL with 157 mostly Kolkata based clubs and units. Started in 1898, this league is the oldest league in Asia and one of the oldest in the world. There are about 8500 directly registered players of IFA who participate in CFL.