ACS, Average Cost of Supply; APEPDCL, Eastern Power Distribution Company of Andhra Pradesh Limited; APERC, Andhra Pradesh Electricity Regulatory Commission; APSPDCL, Southern Power Distribution Company of Andhra Pradesh Limited; ARR, Average Revenue Realized; AT&C, Aggregate Technical and Commercial; Affordability; BESCOM, Bangalore Electricity Supply Company Limited; CAGR, Compounded Annual Growth Rate; CEA, Central Electricity Authority; CERC, Central Electricity Regulatory Commission; CESC, Chamundeshwari Electricity Supply Corporation Limited; CGS, Central Generating Station; CIL, Coal India Limited; CPCB, Central Pollution Control Board; DISCOM, Power Distribution Company; DISCOMs; ECR, Energy Charge Rate; EPS, Electric Power Survey; Electricity regulation; FC, Fixed Charges; FGD, Flue Gas Desulfurizer; GENCO, Power Generating Station; GESCOM, Gulbarga Electricity Supply Company Limited; GOI, Government of India; HESCOM, Hubli Electricity Supply Company Limited; IPP, Independent Power Producer; KERC, Karnataka Electricity Regulatory Commission; KSEBL, Kerala State Electricity Board Limited; MESCOM, Mangalore Electricity Supply Company Limited; MOP, Ministry of Power in the Government of India; MoEF&CC, Ministry of Environment, Forest and Climate Change in the Government of India; NTPC, National Thermal Power Corporation Limited; PFC, Power Finance Corporation Limited; PGCIL, Power Grid Corporation of India Limited; Power sector reforms; RE, Renewable Energy; REC, Rural Electrification Corporation Limited; RPO, Renewable Purchase Obligation; SCCL, Singareni Collieries Company Limited; SDGs, Sustainable Development Goals; SERCs, State Electricity Regulatory Commissions; SGS, State Generating Station; SR, Southern Region; Sustainable development goals; TANGEDCO, Tamil Nadu Generation and Distribution Corporation Limited; TPPs, Thermal Power Plants; TSERC, Telangana State Electricity Regulatory Commission; TSNPDCL, Northern Power Distribution Company of Telangana Limited; TSSPDCL, Southern Power Distribution Company of Telangana Limited