DPS , Dav and modern school Barakhamba
Since you put up in Noida Pathways, Apeejay , DPS , Amity international and Shriram are few of the options that you can consider.
You can give Convent schools a try as well. There are several in the city like Loreto Convent, St. Mary's, Don Bosco (all boys) and Holy Child Auxilium (all girls).
Depends on where you live in Delhi. There are many reputed schools.
DPS , Amity international are the best ones