13. No person shall be, or shall continue to be a Director who- (a) is or at any time has been convicted of an offence which, in the opinion of the Government, is an offence involving moral turpitude; or ¹[(aa) has been sentenced by a court for a term of imprisonment exceeding one year; or] (b) is a minor; (c) is found to be a lunatic or of unsound mind; (d) is or at any time has been adjudicated insolvent; or (e) absents himself from three consecutive meetings of the Board without leave of absence granted by the Chairman or, in the case of the Chairman, by the Government ²[; (f) has defaulted in payment of dues of banks and financial institutions.]