Bar against  collection of tax when not payable

11.    (1)     No person, who, is not registered under this Act or if registered, is not liable to pay tax in respect of any sale or purchase, shall collect any amount by way of tax from any person.

(2)     No person, who is registered under this Act, shall collect any amount by way of tax in excess of the amount of tax leviable under this Act.

(3)     No person, who is registered under this Act, shall collect any amount by way of tax in respect of sale of goods, which are tax free under section 16.

(4)     If a person collects tax in contravention of the forgoing provisions of this Act, he shall be liable to deposit the tax so collected immediately, in the Government treasury. In the event of failure of such person to deposit the tax, the Commissioner or the designated officer, as the case may be, shall, by order in writing, recover such tax, as per provisions of this Act.