A China visa application process usually takes 4 working days if everything goes well. if you will study in China, you should apply for a China Student visa.
You may have to prepare the following documents:
1. Application form: All applicants should fill in one visa application form appropriately and authentically.
2. Applicant's passport valid for at least six months with at least 2 blank visa pages.
3. One recent passport size photograph.
4. One Passport photocopy.
5. Covering letter from the applicant's recently graduated school, university or applicant himself/herself.
6. Admission Notice issued by the university in China.
7. Student visa application form (JW201 Form or JW202 Form) issued by the Ministry of Education, Government of China.
8. Physical Examination Record for Foreigner (which can be downloaded from Chinese Embassy website or collected from Visa Office, Chinese Embassy) issued by doctors from an Indian state hospital.