The PSC on the Easter Sunday attacks has been meeting over the past few days.
He said the Attorney General has apprised him in writing that five cases in connection with the Easter Sunday attacks have been taken up before the Supreme Court and appointment of Parliament Select Committee over the Easter Sunday attacks will have an effect on the judicial process.
In his May 29 testimony to parliament, intelligence boss Sisira Mendis said security council meetings were irregular, making it hard to properly protect the island nation. Top Indian intelligence officials said information shared at the highest level between the two countries indicated that Mendis was sacked after Sri Lankan agencies failed to act on specific inputs about the terror plot.
Prime Minister Narendra Modi will briefly visit Sri Lanka on Sunday during which he will hold discussions with President Maithripala Sirisena, according to the president's office in Colombo.More news: James to join Manchester United in reported €20M move
A ministerial source told AFP Mr Sirisena has refused to allow any police, military or intelligence personnel to testify before the committee.
"The cabinet meeting ended inconclusively", the source said on condition of anonymity.
Sirisena's defence secretary and police chief have suggested that the president, who is also the minister of Defence and Law and Order, did not follow proper protocols in dealing with intelligence reports, including advance warnings about the April 21 bombings.
Mr Sirisena's office did not comment on the meeting, but said the president had told senior police officers on Friday that he will not allow any serving officer to testify.More news: "X-Men: Dark Phoenix" Is A Case Of Squandered Potential
Sirisena has repeatedly denied he was aware of an impending threat.
Seven Sri Lankans who had pledged allegiance to Islamic State group blew themselves up at three churches and three luxury hotels on April 21. The country has been under a state of emergency since the bombings.
In the meeting on June 9, Sirisena would push the Indian Prime Minister to lift the travel advisory for Sri Lanka, marking it "safe to visit".
The Indian premier is to make a brief stopover in Colombo on his return from an official visit to the Maldives on Saturday. Mendis reportedly pinned the blame for the failure to prevent the attacks on government inaction.More news: Meghan makes first public appearance since son's birth at Queen's birthday