I am living in Chennai. It's in Tamil Nadu state in India. Where I have to obtain visa for visit Hong Kong? This visit I am going to make it along with Singapore visit. After Singapore, I will be traveling to Malaysia & Hong Kong with my family. Is it possible to make it at entry point while traveling from Singapore or Malaysia or I have to endorse earlier itself?

At present I am working in Muscat, Oman and my whole family is having Oman's Residence Visa, but my wife & children are staying & studying in India.