Important Contact Addresses for Indian Students in Germany

My niece is going for a short term course sponsored by school to Germany. Provide me some important contact address and numbers for Indian students who are going to Germany. Is there any place or centralized number out there where one Indian student can call during some issue?

For your help here I am providing you the names of some institutes which offer online tuition for science subjects.

Sushiksha Tutorial, Jodhpur Park, Kolkata
Success Point, New Alipore, Kolkata
Arora Tutorial, Bangur Avenue, Kolkata
Study Centre, Canal Road, Kolkata
B.E. Academy, Frazer Town, Bangalore
Focus Academy (A Unit Of Focus Educational Trust (Regd)), Frazer Town, Bangalore
Bell Academy, Vijaya Nagar, Bangalore
Edurite Tutorials, Bannerghatta Road, Bangalore