i am indian and working in nissan at resende , i want to go to china for business trip

Invitation letter from the business partner in Shanghai is required for application. It should contain following:
(1) Your personal information, such as name, gender,and date of birth.
(2) Purpose of the visit, itinerary such as date of entry and exit, places of visit, relationship between you and the inviter, and who will bear your expenses.
(3) If invited by a unit, please provide detailed information such as name of the unit, contact number, address, seal of the unit, and representative or the inviter's signature.