Dear Mr Hussain,
To apply to Universität Hamburg as an international applicant, you need to have your documents checked in a "preliminary documentation" procedure by uni-assist e. V. (University Application Service for International Students). uni-assist determines whether your previous educational qualifications permit you to start studying in your program of choice in Germany. Detailed information about this procedure is provided here:
https://www.uni-hamburg.de/en/campuscen ... ldung.html
Since the bachelor programs offered by Universität Hamburg are taught in German, you need to provide proof of German language proficiency to be admitted. Detailed information about the level of German language proficiency required and about the certificates accepted by Universität Hamburg is provided here:
https://www.uni-hamburg.de/en/campuscen ... isse.html
Further detailed information for international applicants at Universität Hamburg is provided in this brochure:
https://www.uni-hamburg.de/en/campuscen ... chelor.pdf
Best regards,
Birte Schelling