Truly International Schools in Noida/Gurgaon (New Delhi)

Hello, we are planning to move to India with 2 kids - one in grade 9 and one in grade 6. They have always been in IB schools with kids from diverse nationalities. We will be on a budget for the school, so something like Pathways seems reasonable. Our concern is, are the schools truly international, with kids/teachers for diverse nationalities? Can anyone give an insight into the quality of education and learning offered? Thanks so much for your help!