(a) whether the Ministry of Tribal Affairs is aware of Constitutional amendment of article
16(4A) and subsequent DOP OM No. 20011/1/2001-Estt. (D) dated January 21, 2002;
(b) if so, whether the Ministry has implemented the said circular with retrospective effect
with effect from January 30, 1997;
(c) if so, the details thereof; and
(d) if not, the reasons therefor?