Cambridge

Hi,
You have to take IELTS to meet the English language requirements. No other test is required as such but you must have scored around 80% in your 12th.

You have to apply for these universities through UCAS application portal. You will have to give a English proficiency test like IELTS or TOEFL.

Kindly mention the course name for which you wish to secure admission in. For more details, the admission process is mentioned in the link below. https://www.shiksha.com/college/cambridge-institute-of-technology-ranchi-47394?q=Cambridge+Institute+of+Technology&rf=searchwidget&landing=ilp.

Yes, direct admission is possible in this college but you should complete your 12th standard or diploma courses in order to get admission here. For more information, contact the college officials.

Go through the reviews below for details :
https://www.shiksha.com/college/bms-institute-of-technology-and-management-yelahanaka-bangalore-21616/reviews
https://www.shiksha.com/college/cambridge-institute-of-technology-bangalore-k-r-puram-32831/reviews
College comparison tool : https://www.shiksha.com/resources/college-comparison
Also, to know the exact scenario for faculty and placements get in touch with the current students through social media or in person.

For fee details in all the institutes, go through the links below:
https://www.shiksha.com/university/cmr-university-Bangalore-47389
https://www.shiksha.com/college/dayananda-sagar-college-of-engineering-dsce-banashankari-Bangalore-28374.

SAT scores are not acceptable to get admissions in Manipal. Since your son is a US National, he does not necessarily have to give the entrance test. There is a separate direct admissions criteria for NRIs and foreign nationals since their academic curriculum is very different from general courses in Indian schools. The procedure for the same will be available in the admissions page in manipal.edu website.