Amendment of section 3

4. Amendment of section 3.- In section 3 of the principal Act --

(i) in sub-section (1), for the word “may”, the word “shall” shall be substituted; (ii) in sub-section (2),- (a) for the word “shall”, the word “may” shall be substituted; (b) after clause (a), the following clause (aa) shall be inserted, namely,- “(aa) a Social Scientist;”.