Exemption u/s. 54B denied - Assessee did not file return of...

Exemption u/s. 54B denied - Assessee did not file return of income - As observed on the amendment in section 139(1) of sixth Proviso, section 54, section 54B or section 54D or section 54EC or section 54F or section 54G or section 54GA or section 54GB were inserted by the Finance Act, 2019 which is effective from 01.04.2020, but the impugned case on hand is related to the AY 2006-07. It indicates that the exemption u/s 54B can be claimed without filling of return of income before such amendment - AT