Are there any colleges in USA where IELTS is compulsory for admission for MS or either one of TOEFL / IELTS is enough?

Almost all colleges in USA accept both IELTS as well as TOEFL score so you can give either of the two. If you want to check universities that particularly accept the IELTS score, you need to keep your course in mind. Look for universities that cater to your preferred course and then it would be easier for you to confirm the test score requirements. 

So let me know about the course that you wish to pursue and if you have any country preferences and I’ll help you with relevant information.