Assessment Procedure Reform: summary assessments allow limited adjustments to returns while preserving notice and review safeguards. The Act substitutes section 143 to permit Income tax Officers to make summary assessments on returns without the assessee's presence, authorising limited adjustments (arithmetical corrections; prima facie allowable or disallowable claims; specified carry forward items). Notices under section 143(2) may require books and evidence; prior approval is required for certain post summary enquiries. Safeguards include a one month objection window to invoke a fresh assessment under section 143(3), suspension of recovery and interest for disputed adjustments pending fresh assessment, and specified grounds and time limits for treating summary assessments as materially incorrect.