MS Dhoni is set to play on for Indian Premier League side Chennai Super Kings in 2021.
The pledge came from Narayanaswami Srinivasan, the former ICC chairman and BCCI president who is managing director of India Cements, the team's owners.
Dhoni has not played for India since last year's Cricket World Cup, with the 38-year-old having occasionally made himself unavailable for selection at times since the tournament.
Speculation has since been rife over Dhoni's future ahead of the Twenty20 World Cup, which takes place later this year.
However, Srinivasan has moved to end any doubt over Dhoni's place with IPL side Super Kings, insisting the wicketkeeper-batsman will be retained next season.
"People keep saying when will he... how long will he play, etc," Srinivasan told reporters when asked about Dhoni, who has been left off the BCCI's list of centrally contracted players.
Srinivasan, speaking at an Entrepreneurs' Organization event in Chennai, added: "He will play. I can assure you. He will play this year. Next year he will go the auction; he will be retained there. So there is no doubt in anybody's mind."
Dhoni previously led India to two world titles – the 2007 T20 World Cup and the 2011 World Cup – making 90 Test appearances, featuring in 350 ODIs and playing 98 T20 internationals.