Shoaib Akhtar will not be allowed to play in the IPL

Shoaib Akhtar is being sued by the Pakistan Cricket Board and its chairman for defamation over allegations he made after being banned for five years.

A notice served by PCB lawyers accuses Shoaib of claiming in a TV interview that PCB chief Dr Nasim Ashraf tried to "extort" payments from him.

Dr Ashraf denies the claims and has demanded that Shoaib, 32, retract them, apologise and pay damages of �1.6m.

The PCB banned him on Tuesday for publicly criticising the Board.

Ashraf intends to seek "all legal remedies under the civil and criminal laws of Pakistan" unless Shoaib withdraws his allegations.

Shoaib had hoped to play for Kolkata Knightriders in the new Twenty20 Indian Premier League but IPL chairman Lalit Modi said they would now not allow Akhtar to compete while he was banned by the PCB.

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"Shoaib has been banned from playing and until his ban is lifted he cannot play in the IPL," said league chairman Modi.

"We know his appeal against the ban is coming up for hearing," he said. "We're hoping his ban will be lifted. He is a great player and we want him to play.

"But he cannot play in IPL as long as the ban is applicable."

Shoaib has already stated his intention to appeal against the ban.

Meanwhile, the International Cricket Council's (ICC) anti-corruption unit wants to talk to Shoaib after he made claims he was offered money to under-perform in South Africa and India.

"I have rejected many offers in the past to under-perform," said Shoaib on Tuesday, following the imposition of the five-year ban.

"It happened in Johannesburg and in India but I never accepted them because I can't betray my country."

The ICC Code of Conduct outlines a minimum ban of one year and maximum of five years for any individual who fails to disclose an approach from another person to his captain or to his team manager or to a senior board official or to the ICC's officials.