yes nominee director are liable to retire by rotation. Only some PSU companies have been exempted. Further w.r.t Managing Director, MD is appointed for a fixed term therefore not liable to retire by rotation.
if n.d is of any authority established under special act than such nd will not count in limit max 15 and 2/3rd or 1/3 rd legal support. special act prevail over general law eg:- lic
nd of any other authority accept above shall be count in 1/3rd non rotational legal support. here the tenure is fixed by BOD at board meeting and u/s 152(6) 2/3rd dir's tenure shall determine by rotation
I got your mean but kindly quote any legal support like circular, notification etc which is stating that Nominee Directors and fixed term directors like MD are not counted in said limits of sec 152(6)