Drinking water: Bottled water is available and usually provided in flasks in hotel rooms. For people with delicate digestive systems. It is advisable to use bottled mineral water, this is widely available.
Facilities: It is advisable to bring specific medicines. There are state operated facilities in all towns and cities and private consultants and specialists in urban areas.
The entire Indian sub continent has the same health hazards so one line of defence should cover you on all territories. The major risks to your health from mosquitoes are malaria, encephalitis, kala azar and dengue. Cover your arms and legs; be liberal with the repellent and in problem areas sleep under a mosquito net. Traveller's diarrhoea is another running problem and year after year traveller after traveller gets the ‘loosies'. Ensure it's nothing nastier by avoiding green salads, uncooked food and water that you haven't sanitised by dropping an iodine pill into if it doesn't come from your hotel or out of a sealed bottle.Also carry sunscreen with minimum SPF 20 to escape sunburn.
It's hopefully been a great tour of town .
