I am planning to open a BTC exchange in india. I have clients and Businesses who would give me transaction volumes everyday. I tried contacting many existing exchanges in India for help, but as usual no positive reply from them. So I would like to do it myself. I am confused between buying an exchange software or creating one with developers in India. I would like to know the approximate costs involved to open a BTC exchange in india and also time taken to do it. Please let me know if you could help me in anyway possible. thanks for your time.