Voltage & Frequency: India uses 230V, 50Hz electrical supply. Significantly different from US 110V/60Hz and European 220V/50Hz systems.
Plug Types: India primarily uses Type D plugs (three round pins in triangular arrangement). Also common are Type A (two flat pins), Type F (round pins with side grounding clips), and Type M (three thick round pins).
Adapters & Converters: International visitors should carry universal power adapters compatible with Type D plugs. Most Indian hotels provide adapters at reception. Electronic devices with dual voltage capability (check labeling) only need adapters. Non-dual voltage devices require voltage converters (heavy and not recommended).
Power Supply: Generally reliable in tourist areas and modern hotels. Occasional power cuts possible, especially monsoon season. Hotels usually have backup generators. Carry portable chargers for continuous device availability.