“Reason to believe” cannot be read to mean that the Assessing Officer should have finally established beyond doubt that income chargeable to tax has escaped assessment

Apex Court in ITO v.Lakhmani Mewal Das [1976] 103 ITR 437 held that the expression “reason to believe” cannot be read to mean that the Assessing Officer should have finally established beyond doubt that income chargeable to tax has escaped assessment. It held that the only requirement to reopen an assessment is a reasonable belief on the part of the Assessing Officer issuing the reopening notice that income chargeable to tax has escaped assessment.