The appellant, Assam Electricity Grid Corporation Limited (AEGCL), is the State Transmission Utility of Assam. The Department demanded Service Tax on two sets of receipts for the period October 2013 to 2016-17: (i) SLDC charges of Rs.8.45 crore collected from the State distribution company APDCL; and (ii) Open Access charges of Rs.163.74 crore received from PGCIL, IEX and POSOCO for use of AEGCL's transmission network under STOA/MTOA. The Department argued that SLDC functions (monitoring, scheduling, grid control) and the provision of transmission infrastructure under Open Access were services distinct from the actual transmission/wheeling of electricity and thus taxable under Section 65B(51) read with Section 66B of the Finance Act, 1994.
The CESTAT (Judicial Member R. Muralidhar and Technical Member K. Anpazhakan) held that the dispute turns on the true character of the activities. Referring to Sections 31 and 32 of the Electricity Act, 2003, the Tribunal noted that the SLDC is statutorily constituted for integrated operation of the State power system and its functions—optimum scheduling, grid monitoring, supervision and control of intra-State transmission, maintaining accounts of electricity transmitted—are the very mechanisms through which transmission of electricity is carried out. Similarly, "Open Access" under Section 2(47) of the Electricity Act is the non-discriminatory provision for use of transmission lines/system for transmission of electricity; the permission to use the network is a necessary incident of transmission itself.
The Tribunal held that activities integrally connected with transmission/distribution of electricity cannot be severed and independently taxed merely because charges are separately identified for accounting or tariff purposes. During the relevant period, transmission/distribution of electricity by a utility was excluded from Service Tax under the negative list entry in Section 66D(k) of the Finance Act, 1994. Ancillary or indispensable components of that excluded activity fall outside the levy. This view was supported by the Gujarat High Court in Torrent Power Ltd. v. Union of India [2020 (34) G.S.T.L. 385 (Guj.)], which treated such services as naturally bundled under Section 66F(3) and therefore exempt, and by CESTAT decisions in Madhya Pradesh Power Transmission Co. Ltd. [2023 (385) E.L.T. 152 (Tri.-Del.)] and Gujarat Energy Transmission Corporation Ltd. [Final Order Nos. 10331-10332/2024].