Hi,
I live in Bangalore. Even I am wearing a hair systems. If you are looking for affordable and good hair systems, you can refer trendyhairsystems.com. I am using their system. It fits the budget and its of great quality.
They have both custom and stock systems. They don't have a fixing centre but they provide Cut in Provider in all the major cities in India. they even have home service for cut in providers.
Its better than paying huge money to hair clubs in India which don't provide great quality.
They also have customer service for maintenance or any queries.