The two witnesses are Yasonna Laoly and Taufiq Effendi, both former members of the House's Commission II.
"Investigators are studying thoroughly the witnesses' testimonies on the process of budgeting the e-ID card project at the House," commission's spokesman Febri Diansyah said Tuesday.
Following the questioning, Yasonna, who is currently the law and human rights minister, said the questioning was looking to confirm the summary of a meeting discussing the project.
"There was nothing different. It is just an additional explanation," he said.
Meanwhile, Taufik said he was also questioned about the summary of a meeting on the e-ID card project.
So far, the anti-graft body has questioned a total of 113 witnesses in the case against the House member identified by his initials as MN, Febri said.
The a nt-graft body has identified MN as a suspect in the e-ID card graft case on the grounds of preventing, obstructing or foiling, directly or indirectly, and questioning during the trial of the e-ID card graft case.