Tribunal held that AO had made detailed enquiries into claim of assessee’s income being ‘exempt’ under the Act. CIT was not justified in revising said order. Followed: Smt. Sumana Bandyopadhyay Vs. Dy. DIT (IT), [2017] 88 Taxmann.com 847/396 ITA 406 (Cal.), Asim Kumar Bera v.. Dy. DIT (IT) [2017] 147 ITD 509 (Agra) (Trib)) (AY. 2016-17)