You will have to apply for your visa in person. Visa fees amount to €75 (to be paid in INR). In addition, you should provide two sets of application documents containing the following documents:
Valid passport
Copy of your passport’s information page (A4 size copy)
Application form
A declaration stating the information provided is true and complete information
Cover Letter explaining the reason for your visa application. You may be required to submit a German translation of this document.
Letter of Admission from a German University
University Certificates and transcripts - Degree certificates and mark sheets
Proof of Language Proficiency (German language test scores)
LOR, CV & Statement of Purpose
Proof of funds
3 passport pictures according to biometric specifications, not older than 6 months