Section 129 of The Bharatiya Sakshya Adhiniyam :Evidence as to affairs of State.
Evidence as to affairs of State. The Bharatiya Sakshya Adhiniyam 2023
No one shall be permitted to give any evidence derived from unpublished official records relating to any affairs of State, except with the permission of the officer at the head of the department concerned, who shall give or withhold such permission as he thinks fit.