A statement from the sp0y service said that the explosives-packed Corolla car was seized during a special operation in Chak district of central Maidan Wardak province.
It added the Taliban militants planned to use the explosives in a suicide attack in Kabul. One individual was detained in connection with the explosives seizure.
Separately, 10 BM1 rockets ready for launch were found in the Khak-i-Jabbar district of Kabul, the intelligence agency said.
Twenty boxes of bullets were also recovered in the Deh Sabz district of Kabul. Thwarting the plots has prevented bloody incidents in the city, the agency claimed.