I am a indian , wants to go to china for 1 week from kathmandu, will i have any problem in visa

You can apply in Nepal, for a business visa to China. The documents needed are as follows:
Basic documents are your passport, application form, photo, and your student visa/residence permit in Nepal. Besides, an Invitation Letter of Duly Authorized Unit from China, Visa recommendation letter from your School or organization arerequired. Sometimes, bank statements, round-trip air tickets booking are required if officers deem them necessary.