TPDDL: https://www.tatapower-ddl.com/customers/solutions/customer-information
BYPL: https://www.bsesdelhi.com/web/bypl/grievance-management-process
BRPL: https://www.bsesdelhi.com/web/brpl/consumer-grievance-process
NDMC: https://online.ndmc.gov.in/ECGRF/contents/grievance-redressal-procedure/three-tier-grievance-redressal-structure
