On transit would like to visit Hongkong. Procedure to have transit Visa to Hongkong.

1. You need to apply a HK visa in advance;
2. If this is the first for you to apply for a HK visa,you should apply by mail By post directly or through the local sponsor in the HKSAR to:
Receipt and Despatch Unit
Hong Kong Immigration Department
2/F, Immigration Tower
7 Gloucester Road
Wan Chai, Hong Kong
(It will normally take four weeks to process a visit/transit visa/entry permit application upon receipt of all the required documents)
3. If this is not the first time, you can apply at the Chinese Embassy or consulate general in Nepal
4. The following documents are needed:
HK Visit/Transit Visa Application Form (ID1003A and ID1003B), one recent passport-photo size color photograph of the applicant, one photocopy of the passport page containing the personal particulars, proof of the applicant's financial standing (e.g. bank statements, salary certificate issued by the company), air tickets booking, travel itinerary, and an invitation letter issued by the company in HK and visa recommendation letter from the company in Nepal.