The document outlines various time limits prescribed under the Income Tax Act related to filing of income tax returns and other procedures. It mentions the due dates for filing normal, belated and revised returns for individual taxpayers and companies. It also specifies the timelines for depositing amounts in special accounts to claim deductions, getting audit reports, challenging assessing officer's jurisdiction and other compliance procedures. The time limits prescribed in the act aim to ensure timely and accurate filing of returns and completion of tax assessments.