Tourist Visa for Hong Kong

You can submit your HK visa application to Chinese embassy in Nepal, the embassy will send it to HK Immigration Department for approval. But if apply for visa to visit HK for the first time, you should send directly to the Immigration Department of the Hong Kong Special Administrative Region (HKSAR). For more details, you can refer to http://np.china-embassy.org/eng/ConsularService/t555053.htm
The processing takes about one month, and visa fee is Rupee 3600.