CBDT gives Income Tax Exemption to Chennai Metropolitan Water Supply and Sewerage Board
The Central Board of Direct Taxes (CBDT) under the Ministry of Finance (Department of Revenue) has recently issued a notification [Notification No. 151/2025/F. No.300195/65/2024-ITA-I], dated October 15, 2025, informing that the Central Government, in exercise of its powers granted under sub-clause (b) of clause (46A) of section 10 of the Income-tax Act, 1961 (43 of 1961), (hereinafter referred to as “the Income-tax Act”), has notified “Chennai Metropolitan Water Supply and Sewerage Board” having PAN no. AAALM0037B, exempt from income tax.
The board is established under the Chennai Metropolitan Water Supply and Sewerage Act, 1978 (Tamil Nadu Act 28 of 1978) for the purposes of the said clause. This tax exemption was scheduled to take effect from the assessment year 2024-25 (financial year 2023-2024). Meaning, currently, the board has begun enjoying tax exemption.
This benefit will only be made effective for the board if it continues to be constituted under the Chennai Metropolitan Water Supply and Sewerage Act, 1978 (Tamil Nadu Act 28 of 1978), and is involved in one or more purposes specified under sub-clause (a) of clause (46A) of section 10 of the Income-tax Act. (This generally includes purposes like housing, urban development, public welfare, etc.).
Refer to the official notification for complete information.
