if the goods dealt are agricultural goods and the seller is exempt from tax under section 10(1) being agriculture income, you can take shelter under 'Guidelines under section 194Q of Income tax Act, 1961' under Circular 13 of 2021, which clarified as below:
4.5 Whether tax is to be deducted when the seller is a person whose income is exempt
4.5.1 It is requested to clarify if the provisions of section 194Q of the Act shall apply to a seller whose income is exempt. To remove difficulty, it is clarified that the provisions of section 194Q of the Act shall not apply on purchase of goods from a person, being a seller, who as a person is exempt from income tax under the Act (like person exempt under section 10) or under any other Act passed by the Parliament (Like RBI Act, ADB Act etc.).
4.5.2 Similarly, with respect to sub-section (1H) of section 206C of the Act, it is clarified that the provisions of this sub-section shall not apply to sale of goods to a person, being a buyer, who as a person is exempt from income tax under the Act (like person exempt under section 10) or under any other Act passed by the Parliament (Like RBI Act, ADB Act etc.).
4.5.3 The above clarifications would not apply if only part of the income of the person (being a seller or being a buyer. as the case may be) is exempt.
Practically, you can get a certificate from the commission agent that the farmers from whom goods are procured are agriculturist and eligible for exemption under section 10(1) [whereever applicable] in respect of the sale produce.
Further, there is a specific representation given by the Adoni Groundnut, Cotton & Kappas Commission Agents Association.
However, I have not seen any specific clarification from the Government on the same.