Section 27.(1). 1

The certificate of registration issued to a casual taxable person
or a non -resident taxable person shall be valid for the period
specified in the application for registration or ninety days from the
effective date of registration, whichever is earlier and such person
shall make taxable supplies only after the issuance of the certificate
of registration:
Provided that the proper officer may, on sufficient cause being shown
by the said taxable person, extend the said period of ninety days by a
further period not exceeding ninety days.
(2) A casual taxable person or a non-resident taxable person shall, at
the time of submission of application for registration under sub -
section (1) of section 25, make an advance deposit of tax in an
amount equivalent to the estimated tax liability of such person for
the period for which the registration is sought:
Provided that where any extension of time is sought under sub -
section (1), such taxable person shall deposit an additional amount of
tax equivalent to t he estimated tax liability of such person for the
period for which the extension is sought.
(3) The amount deposited under sub -section (2) shall be credited to
the electronic cash ledger of such person and shall be utilised in the
manner provided under section 49.
Amendment of registration.-