(a)in clause (i), with effect from the 1st day of April, 2018,-(A)in sub-clauses (a) and (c), for the figures, letters and words "1st day of July, 2017", the figures, letters and words "1st day of July, 2020" shall be substituted;(B)in the long line, for the word "and", the word "or" shall be substituted;
