visa to china from hong kong

1.Citizens from India and other 32 countries can not get China Visa in HK unless they are working or living inHK.
2.But it is possible to get a single entry China visa valid for 15 Days in HK, provided that you can meet the following requirements:
(1)Previous China Visa which shows that you have travlled in China before ;
(2)Your passport has no cancelled china visas
(3)and that you have a confirmed return ticket or a ticket showing exit from China and a confirmed hotel booking voucher.