HI,
List of few top CBSE schools in Kathmandu:
1. The Chandbagh School, Bansbari, Kathmandu
2.Kendriya Vidyalaya, Lazimpat, Kathmandu.
3.Alok Vidyashram, Gyaneshwor, Kathmandu
4.Modern Indian School, Chobhar, Kirtipur, Kathmandu
5. Rupy's International School, Tahachal, Kathmandu.
Hope it helps!
Thanks