Section 8(2)(c) in The National Commission For Scheduled Tribes Chairperson, Vice-Chairperson And Members (Conditions For Service And Tenure) Rules, 2004
(c)Notwithstanding anything in clause (a) the President may by order remove from office the Chairperson if the Chairperson,-(i)is adjudged as an insolvent; or(ii)engaged during his term of office in any paid employment outside the duties of his office; or(iii)is, in the opinion of the President, unfit to continue in office by reason of infirmity of mind or body: