The Indian Cricket League
The ICL was a private cricket league funded by Zee Entertainment Enterprises. This league was supported by Kiran More and Kapil Dev which led to a conflict of interest among them and the BCCI.
The ICL did not have the approval of the ICC either which is why no player who played in the ICL was eligible to represent their national team.
But the ICL was the first ever 20-20 cricket league that was played on a big platform in the country. The BCCI not ready to be outdone also considered a league of their own. There were plans for another T20 league that was going to be approved by the BCCI, but those plans were kept on hold for now.
The first season of the ICL was decided to kick off in November of 2007. (How a national debacle gave birth to the Indian Premier League)
But something happened in the autumn of 2007 that changed the landscape of Indian cricket.