Pakistaninfo-icon's Supreme Courtinfo-icon has disqualified former prime minister Nawaz Sharifinfo-icon as head of his party.

Mr Sharif was ordered to step down as prime minister last year amid corruptioninfo-icon allegations that he denies.

The court ruled that his earlier dismissal from office made him ineligible to lead the PML-N.

All decisions taken by Mr Sharif while head of the party were declared void, including nominations for candidates in Senate electionsinfo-icon due in a fortnight.

"The Election Commission is directed to remove the name of Nawaz Sharif as president of PML-N from all official records," Chief Justice Saqib Nisar said.

"As a result, all steps taken, all orders passed by Nawaz Sharif are also declared to be as if they had never been taken."

The ruling is being seen as a blow to Mr Sharif who has consistently claimed he is the victim of a political conspiracy.

He is currently on trial in an anti-corruption court following an inquiry into his family finances. A verdict is due next month.

The PML-N has a majority in the lower house and hoped to win control of the Senate in the forthcoming elections, which are scheduled to take place months before an expected general election.