4. In section 2 of the principal Act, in sub-section (1),
(I) clause (a) shall be renumbered as clause (aa) thereof, and before clause (aa) as so renumbered, the following clause shall be inserted, namely:
'(a) "Commercial Appellate Courts" means the Commercial Appellate Courts designated under section 3A;';
(II) in clause (i), for the words "which shall not be less than one crore rupees", the words "which shall not be less than three lakh rupees" shall be substituted.