The former India coach, however may have to pay for his entry into ICL by losing the monthly pension he is entitled to from the Board of Control for Cricket in India (BCCI)) as it still does not have the backing of the Board.
The ICL's Creative Head Ajay Kapoor confirmed the coming on board of Sandeep Patil to the league.
The 50-year-old, who played in 29 Tests and 45 ODIs for India , took the plunge to join the rebel league on Friday, according to sources close to him.
But the Mumbai stalwart, who has represented Madhya Pradesh in Ranji Trophy and then guided Kenya to the semi-finals of the 2003 World Cup as coach, may have kissed goodbye to the monthly pension, along with former India players Kapil Dev and Kiran More.
''The board has decided to stop all the entitlements to any current or former player, official or umpire who is connected to the ICL. A letter to this effect will soon reach all those who are receiving such remunerations from the board,'' according to BCCI sources.
Kapil, the current chairman of the National Cricket Academy, is heading the ICL's Executive Board while former stumper and selection panel chief More is on the same Board even while holding the post of Baroda Cricket Association secretary.
The BCCI Working Committee had severely criticised both these former cricketers for associating themselves with the rebel body at its meeting in Delhi earlier this month but stopped short of issuing show-cause notices to them.
Essel Group chief Subhas Chandra launched the ICL in April promising a one million dollar prize money and names like Brian Lara, Shane Warne, Glenn McGrath, all recently retired from international cricket, are all being linked to the event.
The ICL is proposing to commence with six teams playing in the Twenty20 format later this year.