Section 83 of the GST Act: Provisional attachment to protect revenue in certain cases —

(1) Where, after the initiation of any proceeding under Chapter XII, Chapter XIV or Chapter XV, the Commissioner is of the opinion that for the purpose of protecting the interest of the Government revenue it is necessary so to do, he may, by order in writing, attach provisionally, any property, including bank account, belonging to the taxable person or any person specified in sub-section (1A) of section 122, in such manner as may be prescribed.

(2) Every such provisional attachment shall cease to have effect after the expiry of a period of one year from the date of the order made under sub-section (1).