The Sahaj form has five columns, wherein you will have to fill details of salary received, excluding allowances. In the second column, you will have to fill in the details of allowances that are not exempt from tax. In the third column give a detailed break up of perquisites, including accommodation and car or driver, among others. In the fourth and fifth columns, you will be required to mention the amount related to profit in lieu of salary and deductions under Section 16, which include standard deductions, professional tax and entertainment allowance. The taxpayer also has to disclose the amount of interest earned from bank deposits. Under Section 80TTA, interest income of up to Rs 10,000 from bank accounts is exempted from tax.