The currency of Hong Kong is the Hong Kong Dollar (HKD). The notes are available in denominations of 1,000, 500, 100, 20 and 10. The denominations of coins are 10, 5, 2, 1, and 50, 20 and 10 cents. All the main currencies like USD/INR/EU/ AUD etc. are easily converted here.
One must be careful to exchange money only at the most reliable places. You can exchange your currency at the Bank of China or at money exchanges at any of the top hotels.
Currently, 1 HKD equals INR 9.13.