Kashag is a group of important people in the Tibetan government who work together to make decisions and help run the country. It's kind of like a team of superheroes, but instead of fighting bad guys, they work really hard to make things better for their people.
The word "kashag" actually means "council of ministers," which is just a fancy way of saying a group of important leaders who work together to help their country.
The kashag is made up of people who are chosen by the Dalai Lama, who is like the leader of Tibet. They are chosen based on their talents and skills, and they all work together to come up with ideas and make decisions that will be good for their people.
They do things like make laws, help with education, and work to make sure everyone in Tibet is safe and happy. They are really important people in Tibet, and they work really hard to make sure everything is running smoothly.