Provisional assessment: officer must make specified income adjustments and proceed if regular assessment is not completed within six months.

Provisional assessment must be made after specified adjustments to income or loss declared in the return with reference to return, accounts and documents and, for certain adjustments, records of earlier assessments; if regular assessment is not made within six months of receipt of the return, the Income-tax Officer shall proceed to make the provisional assessment. The assessing officer must rectify arithmetical errors, allow prima facie admissible but unclaimed deductions, disallow prima facie inadmissible claimed deductions, and give effect to specified allowances, deductions, loss carryforwards and deficiencies as computed in any regular assessment of earlier years.

---

---

---