Is a teacher allowed to make pupil have drink of water if the does not want to?

No, a teacher is generally not allowed to force a pupil to drink water if the pupil does not want to. Forcing a child to drink could be considered assault or battery, depending on the jurisdiction and the specifics of the situation. While teachers have a responsibility for their students' well-being, that responsibility does not extend to forcing them to consume anything against their will. There might be exceptions in extreme circumstances (e.g., a medical emergency), but generally, respecting a child's autonomy over their body is paramount.