Yes. An 8.9 CGPA on a 10-point scale is a strong record. Converted proportionally, it is about 3.56 on a 4.0 scale. Most MS programs in the US will read this as solid academic performance.
There is no single minimum CGPA for all US universities. Each school and each program sets its own standards, and the most selective programs expect the highest grades. Check the admissions page of each university you plan to apply to rather than relying on general rules.
Grades are also only one part of the file. US admissions committees look at test scores, English proficiency, research or project work, internships, recommendation letters, and your statement of purpose. A high CGPA helps, but a weak statement or poor recommendations can still hold you back.
An 8.9 puts you in a good position. Keep building the rest of your profile: relevant projects, internships, and clear goals in your statement of purpose.
Related reading: Is 7.5 CGPA good for MS in USA?, How to convert 10 CGPA to 4 GPA?, Master’s degree without GPA requirements, and Is 8.4 CGPA good?

