Regulatory duty of Excise
[3A. (1) The Government may, by notification in the official Gazette, levy, subject to such conditions, limitations and restrictions as it may deem fit to impose, a regulatory duty-
(a) on any excisable goods or excisable services, in addition to the duty leviable under section 3, at a rate not exceeding [100] per cent of the rate of duty leviable thereon under the said section, or, in the case of excisable goods, at a rate not exceeding [30] per cent ad valorem or [25] per cent of the retail price and, in the case of excisable services, [25] per cent of the charges for such services; and
(b) on any other goods or services, at a rate, in the case of goods, not exceeding [50] per cent ad valorem or [35]
per cent. of the retail price and, in the case of services, not exceeding [35] per cent of the charges for the services] [:
Provided that, if the assessed amount has a fraction of less than five poisha, the assessment shall be rounded off to the next higher five poisha.]
(2) Any notification issued under sub section (1) shall, if not earlier rescinded, stand rescinded on the expiry of the financial year during which it was issued.]