In this Part, unless the context otherwise requires,—
(a)“constituency” means an Assembly constituency 4* * * ;
(b)“qualifying date”, in relation to the preparation or revision of every electoral roll under this Part, means 6[the 1st day of January] of the year in which it is so prepared or revised:]
7[Provided that “qualifying date”, in relation to the preparation or revision of every electoral roll under this Part in the year 1989, shall be the 1st day of April, 1989.]