Section 28(1)(c) in Central Electricity Regulatory Commission (Terms and Conditions of Tariff) Regulations, 2014
(c)Hydro generating station including pumped storage hydro electric generating station and transmission system including communication system:(i)Receivables equivalent to two months of fixed cost;(ii)Maintenance spares @ 15% of operation and maintenance expenses specified in regulation 29; and(iii)Operation and maintenance expenses for one month.