| (a) | - | for the words "twenty-four months", the words "forty-eight months" shall be substituted; |
| (b) | - | after the third proviso, the following provisos shall be inserted, namely:- |
| - | "Provided also that no updated return shall be furnished by any person where any notice to show-cause under section 148A has been issued in his case after thirty-six months from the end of the relevant assessment year: | |
| - | Provided also that the fourth proviso shall not apply where an order is passed under sub-section (3) of section 148A determining that it is not a fit case to issue notice under section 148:". |