M.S

Yes, you can pursue MS Finance. Financial background is not required but you must show interest and good quantitative skills You must also sit for the GRE and TOEFL for admissions.
Best of Luck.

No it won't because Jaypee is a deemed university and is authorized by University Grants Commission(UGC) . Jaypee has the authority to grant degree by its own name

The top universities for aeronautical engineering course are:
California Institute Technology
University Of Texas At Austin
Cornell University
Stanford University
Princeton University
University Of Michigan
Massachusetts Inst Of Technology
Purdue University
Georgia Institute Of Technology
university Of California-San Diego

Few of the top universities in Germany - Technical University Munich, University of Freiburg,Hochschule Furtwangen University, Humbolt University of Berlin, Freie University of Berlin, RWTH Aachen University and University of Göttingen.
Regards

Have you checked any university for admission requirements firstplace? Almost all technical programs require GRE and also IELTS or TOEFL must be taken. Requirements vary with universities though.

You must contact colleg authorities to confirm the same because it's up to college discretion that taking parents along is a mandate or it's not compulsory

Yes, and besides you also need to learn German language.