Assam Building and Other Construction Workers Welfare Board’ (PAN AAAJA2255M), a Board constituted by the State Government of Assam, in respect of the following specified income arising to that Board, namely:- (a) Labour cess received; (b) Beneficiaries registration fees; (c) Members contribution; (d) Capital gain on sale/redemption of investments; and (e) Interest income earned on (a) to (b) above. This notification shall be effective subject to the conditions that Assam Building and Other Construction Workers Welfare Board, - Shall not engage in any commercial activity; Activities and the nature of the specified income shall remain unchanged throughout the financial years; and Shall file return of income in accordance with the provision of clause (g) of sub-section (4C) of section 139 of the Income-tax Act, 1961