Indian Post Office Act, 1898
28. Registration of postal articles
The sender of a postal
article may, subject to the other provisions of this Act, have the article registered
at the post office at which it is posted, and require a receipt therefor, and
the Central Government may, by notification in the Official Gazette, direct
that, in addition to any postage chargeable under this Act, such further fee as
may be fixed by the notification shall be paid on account of the registration
of postal articles.