Explanation:

- The Kheer Bhawani Mela is a significant religious festival celebrated by the Kashmiri Pandit community.

- Kashmir Valley hosts this annual event at the famous Kheer Bhawani Temple in the Tulmulla village of the Ganderbal district.

- Kabaw Valley is located in Myanmar, and it is not related to this festival.

- Dah Hanu Valley, associated with the Brokpa community, is known for its cultural heritage, but not for the Kheer Bhawani Mela.

- Upper Dibang Valley is in Arunachal Pradesh, not connected to this event.