https://www.scconline.com/blog/post/2022/02/09/unless-7-5-of-the-penalty-is-deposited-when-the-penalty-is-in-dispute-the-appeal-cannot-be-entertained-by-the-tribunal/
CESTAT | Unless 7.5% of the penalty is deposited when the penalty is in dispute, the appeal cannot be entertained by the Tribunal