You also need to prepare the following documents, then submit them to the Chinese Visa Application Service in New Delhi or Mumbai or Consulate General of China in Kolkata.
1. One completed Visa Application Form of China
2. a recently-taken passport photo
3. Proof of sufficient finances to cover all expenditures in China when requied, minimum balance of Rs 1.5 lacs in your account if it is the first time for you to go to China for sightseeing.
4. Confirmed return flight ticket and its photocopy
5. Covering letter from applicants' company or office
6. photocopy of your passport