Hello Aspirant,

List of top colleges is :

Mass achusetts Institute of Technology (MIT)

United States

Harvard University

US

Stanford University

US

Princeton University

US

University of Cambridge

United Kingdom

University of Oxford

US

University of California, Berkeley (UCB)

US

ETH Zurich (Swiss Federal Institute of Technology)

Switzerland

University of California, Los Angeles (UCLA)

US

New York University (NYU)

US

It is good to see you aspire for higher studies. You can definitely pursue your PhD degree course abroad and for that you need to give the following entrance exams :-

-GRE or Graduate Record Examination

-TOEFL or IELTS

Along with good or average scores in the above entrance exams if you have the following, your chance of getting admission will be very high.

-Outstanding GPA

-Having some research publications / technical projects

-Real time work experience works well.

-Good subject GRE score.