The allegations were made against seven discoms, including three from the National Capital -- Tata Power Delhi Distribution Ltd, BSES Rajdhani Power Ltd and BSES Yamuna Power Ltd.
Others are Punjab State Power Corporation Ltd, Uttar Haryana Bijli Vitran Nigam Ltd, Dakshin Haryana Bijli Vitran Nigam Ltd and Himachal Pradesh State Electricity Board Ltd.
The complaint was filed by the Open Access Users Association where it was also alleged that the discoms have unduly influenced and made unreasonable suggestions to their respective State Electricity Regulatory Commissions in order to increase various charges for Open Access.
Under the Electricity Act, open access refers to non- discriminatory provision for the use of transmission lines or distribution system or associated facilities with such lines or system by any licensee or consumer or a person engaged in power generation.
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In a recent order, Competition Commission of India (CCI) noted that the charges for Open Access are to be decided by the respective state commissions as per the Electricity Act and any issues would be dealt by the state electricity regulator and the appellate authority.
"The gravamen of the information essentially centres around the increase in open access charges effected by the respective State Electricity Regulatory Commissions of Delhi, Punjab, Haryana and Himachal Pradesh resulting into alleged denial of market access, creation of entry barriers, foreclosure of competition and limiting consumer choice in the market," CCI observed.