Be respectful of religious sites, dress modestly, and be aware of local customs.
India has well-developed transportation and road network, including trains, buses & domestic flights.
India uses 220/240 volts & 50 Hz & plug types C & D are common.
Yes, most nationalist require visa for tourist, business or medical travel to India. You can apply for an e-visa.
The Indian Rupee (INR) is the official currency
India is a destination for all the seasons. However, the winter season(October - March) is the best time to travel and is considered the season time in India. For hill stations visit, Summer season(April -June) is the most preferred time. If you love to explore lush green landscapes and enjoy Ayurveda, Rainy season is the most favorable time.