Statement
The next meeting of the governing body for the Arihant Publication will be held after one year.
Assumptions
I. There will be no meeting before one year.
II. Arihant Publication will remain in function after one year.

Assumption I is invalid because it has no connection with the given statement. The statement clearly says about meeting of government body and not about any other meeting. Assumption II is valid as only those bodies that are functional hold meetings. So if it is announced that next meeting will be held after one year, the announcers must be assuming that the institute will remain functional after one year.