Officers from other services who are posted to work in the Central Secretariat acquire ex-officio Secretariat status for the duration of their posting. They can authenticate orders at their substantive rank level.
Source: CSMOP Para 43
What is 'ex-officio Secretariat status'?
Related Questions
What is the sequence of certification?
Why must Ministerial oral orders be confirmed in writing even when they follow the rules?
Does this rule apply to social media accounts of Ministries as well?
What is the key difference between a D.O. letter and a regular letter?
Who is responsible for keeping the residential address list of Section staff?
This answer is for informational purposes only and does not constitute legal advice. Always refer to the original rules and consult competent authorities for official interpretation.