Most of the travelers are generally well informed about their traveling & its paraphernalia. However, being tour operators, it is our responsibility to help the desiring travelers about certain small little things. For Foreign tourists, Visa & Passport are a must. A book on India is very handy. A minimal reading on India would be of great help to them. In order to avoid unnecessary harassment or cheating by the transporters, tourists must speak English & quickly study the communication level of any one of them. This must be done with a little bit of patience. Even while picking hotels they should see the communication level of the staffs & attendants. It is advisable for them to carry mineral water with them. Or they can drink water where there is provision of purifier. They should ask for a local person with a good communication skill in English. They can try the local cuisine provided it is really hygienic. Avoid food & drinks with your fellow travelers(stranger) in trains & buses. Ask the prices to different shoppers & people in general to avoid cheating. Keeping one's mind open is the safest thing to take stock of the situation & act accordingly.
Both domestic as well as foreign tourists must behave environmental friendly. If in any wild life park, silence is the simplest & best rule.