N'DJAMENA, Chad (AP) _ Chad accused Libyan leader Moammar Khadafy on Wednesday sending assassins to kill President Hissene Habre and his Cabinet with a bomb last September.

A government report made public in N'Djamena, Chad's capital, said the attempt was foiled after ''patriotic Chadians'' tipped police that a bomb had been planted in the room and was to be set off by remote control during a Cabinet session scheduled for Sept. 27.

It said security police found and defused the bomb the night before the meeting.

The government said the bomb, made of 33 pounds of explosives, was planted by a 47-year-old Chadian, Ali Hassan Adam, who was arrested later. It said a ''Libyan agent,'' Senoussi Abdelsalam, was to have exploded the bomb by remote control from across the Chari River in neighboring Cameroon.

It was unclear from the report whether Abdelsalam had been arrested.

The document said both alleged agents were acting under direct orders from Khadafy, whose country backs rebels opposed to Habre, and that other Libyan assassination and terrorist plots had been uncovered.

It also accused Khadafy of being behind the March 10, 1984, explosion of a French airliner at N'Djamena airport that injured 23 passengers.

At the U.N. Security Council in New York on Wednesday, Chad's foreign minister, Gouara Lassou, displayed the attache case he claimed had contained the explosives.

He said Hassan Adam, the man arrested foor planting the bomb, had been deceived into thinking the case contained a listening device, not a bomb.

Libya's U.N. delegate, Rajab A. Azzarouq said Chad's allegations were without foundation.

Lassou asked for a resolution condemning the alleged Libyan actions, but the council adjourned without taking action.

Azzarouq told the council Libya does not interfere in Chadian affairs and denied Chad's contention that Libyan troops remained in northern Chad, in defiance of a troop withdrawal agreement.

Last fall, France pulled its troops out of Chad, its former colony, after the agreement was made with Libya.

Libya backs rebels led by former President Goukouni Oueddei, Habre's rival. The French troops were sent in to shore up the positions of Habre's forces.

Chad lodged a formal complaint with the United Nations last week about Libya's occupation of the north, where Chadian rebels are entrenched.

Despite repeated Libyan denials, Western analysts have estimated that up to 4,500 Libyan troops remained in neighboring Chad after the French forces left.