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                        139   Return of income 
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                        139A   Permanent account number
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                        139B   Scheme for submission of returns through Tax Return Preparers
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                        139C   Power of Board to dispense with furnishing documents, etc., with the return
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                        139D   Filing of return in electronic form
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                        140 Return by whom to be verified.
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                        140A   Self-assessment 
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                        141   [OMITTED BY THE TAXATION LAWS (AMENDMENT) ACT, 1970, W.E.F. 1-4-1971] 
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                        141A   [OMITTED BY THE DIRECT TAX LAWS (AMENDMENT) ACT, 1987, W.E.F. 1-4-1989] 
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                        142   Inquiry before assessment
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                        142A   Estimation of value of assets by Valuation Officer
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                        143   Assessment 
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                        144   Best judgment assessment
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                        144A   Power of Joint Commissioner to issue directions in certain cases
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                        144B   [OMITTED BY THE DIRECT TAX LAWS (AMENDMENT) ACT, 1987, W.E.F. 1-4-1989] 
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                        145   Method of accounting 
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                        145A   Method of accounting in certain cases
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                        146   [OMITTED BY THE DIRECT TAX LAWS (AMENDMENT) ACT, 1987, W.E.F. 1-4-1989] 
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                        147   Income escaping assessment 
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                        148   Issue of notice where income has escaped assessment 
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                        149   Time limit for notice 
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                        150   Provision for cases where assessment is in pursuance of an order on appeal, etc.
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                        151   Sanction for issue of notice
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                        152   Other provisions 
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                        153   Time limit for completion of assessments and reassessments
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                        154   Rectification of mistake 
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                        155   Other amendments 
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                        156   Notice of demand 
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                        157   Intimation of loss 
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                        158   Intimation of assessment of firm
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                        153A   Assessment in case of search or requisition
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                        153B   Time limit for completion of assessment under section 153A 
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                        153C   Assessment of income of any other person
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                        153D   Prior approval necessary for assessment in cases of search or requisition
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                        144BA  Reference to Commissioner in certain cases
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                        144C Reference to dispute resolution panel
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                        139AA.Quoting of Aadhaar number.
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                        145B Taxability of certain income.
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                        157A Faceless rectification, amendments and issuance of notice or intimation
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                        151A Faceless assessment of income escaping assessment
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                        144B Faceless assessment
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                        142B Faceless inquiry or Valuation
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                        148A  Conducting inquiry, providing opportunity before issue of notice under section 148.
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                        156A Modification and revision of notice in certain cases.
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                        140B Tax on updated return.
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                        148B Prior approval for assessment,reassessment or recomputation in certain cases.
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