Hi Narender, I highly recommend you try Marine Divers (google them), they dont do PADI courses but offer the superior British Sub-Aqua Club training which is internationally recognised. They run private courses so you can do training when you want. Hong Kong is a great place to learn, with the right outfit, interesting stuff to see. If you can dive here, you can dive anywhere. Marine Divers will ensure you are fully competent and confident when you finish your training. They have great pool and classroom facilities for the initial training. Contact them if you want the best available in HK.