If you have the habit of drinking mineral water, better to continue the same habit. Though the tap water municipal water tastes good, as in the case of many places in India, outsiders may get infected easily. Mineral water is available every where and costs around Rs 15/- per litre bottle. All popular brands in India are available in shops.
SugandaPal is a drink made of roots available locally mixed with lemon and soda. It is a thirst quencher during summer. One should definitely taste it.