Contact
Cell phone coverage in the city is excellent. There are many service providers offering a wide variety of plans. If you are planning on travelling around outside the metropolitan area it might be a good idea to buy a cell phone and use one of the pre-paid plans to get yourself connected whilst you are still in the city.
pharmacies
Pharmacies are dime a dozen and you should not have any problem locating one. You do not need any prescription for Modern Medicine Over the Counter drugs and ayurvedic medicine proprietary and traditional, which are available for most common ailments like fever, headache, etc., But you will need prescription for other medicines, which are categorized as Schedule H drugs.
internet
There are plenty of Internet Centres which charge between Rs 10-25 per hr. If you have laptop with wifi connection, free internet services are available at some malls, restaurants, and hotels. However, free public wi-fi is not the norm.