Summary
The water rose fast in the Trishuli River near the Nepal‑China border.
The flood water could travel down the Gandak River into India.
India's central government is watching the river carefully.
Leaders from Bihar and Uttar Pradesh talked about keeping people safe.
Rescue teams and the National Disaster Response Force are ready to help.
People near the border may be moved to safer places.
Officials say there is no need to be scared right now.
If Indian travelers need help, they can call the numbers given.