Do carry sunglasses, sunscreen and a hat. Ask permission before taking any photographs, if possible try to carry a Polaroid instant camera. Indians loved to be photographed. You can earn a lot of cooperation and friendship. Always respect religious shrines and places of worship.
Some places require visitors to observe a decent dress code.
Take care not to violate any taboos in a mosque or a temple. Change currency only from Thomas Cook Exchange Bureaus or official moneychangers. Remember to retain the Currency Exchange receipts after each transaction. You will need them for re-exchange on departure. Photography is prohibited in places of military importance, railway stations, bridges, airports and military installations.