Section 131 of the Income-tax Act, 1961 grants the income tax authorities powers similar to those of a civil court under the Code of Civil Procedure, 1908. This section is crucial for the effective enforcement of tax laws as it allows authorities to summon individuals, compel the production of documents, and take evidence on oath. These powers are typically invoked during assessments, inquiries, and investigations to ensure compliance and verify the accuracy of tax returns. The statutory test involves the necessity of such actions for the purposes of the Act. The burden of proof lies with the taxpayer to demonstrate compliance with tax obligations. In practice, this section is significant as it aids in uncovering concealed income and ensuring that taxpayers adhere to their legal responsibilities.