Zahid Bilal 21 February 2020
Raghav Arora 21 February 2020
This shall be governed by the contract that you must have signed when you took this job!
If you can upload it here, the experts might be able to help you.
Though generally there is always a clause for a month's notice before someone can leave a post. In case you don't do that you might have to pay more than your monthly salary to the school!
Zahid Bilal 21 February 2020