Section 124(b) in The Central Goods and Services Tax Act, 2017
(b)wilfully furnishes or causes to furnish any information or return which he knows to be false, he shall be punishable with a fine which may extend to ten thousand rupees and in case of a continuing offence to a further fine which may extend to one hundred rupees for each day after the first day during which the offence continues subject to a maximum limit of twenty-five thousand rupees.