visa fees and requirements.

i am from Bhutan and have been recently enrolled with the Wenzhou Medical college. Would like to know what are the documents needed along with the JW202 visa form that i have been issued by the college. i was told that i need a medical certificate and bank statement. Any other documents that are required for processing the visa.
Also my brother is going to drop me to college. which visa form is required for him and any other relevant documents he should carry.
I will be processing the visa from the Chinese Embassy in New Delhi, india. Please help me with the visa formalities. thanks