If the Chairperson of National Human Rights Commission is unable to discharge his functions due to…

Section 7(2) of the Protection of Human Rights Act, 1993 provides that when the Chairperson of the National Human Rights Commission "is unable to discharge his functions owing to absence on leave or otherwise, such one of the Members as the President may, by notification, authorise in this behalf" shall discharge those functions until the Chairperson resumes duty.

The choice does not go automatically to the senior-most Member, and it is not made by the Chairperson or the Central Government.