My wife and I recently visited both Hong Kong and Macau on our Indian passports. Our passports were brand new with new previous visas from any country. We were issued visas on arrival and allowed entry into both HK and Macau with no questions asked, no visa fees or any other complication. We got 14-day stay permissions. Both regions no longer stamp visitor passports, but instead give you a small paper slip with details of how long you can stay – try not to loose this slip.