Exemption to deposits under Section 51A extended by substituting the notification expiry date to a later date. Under the authority of Section 51A of the Customs Act, the notifying authority amends the principal notification by substituting the previously specified expiry date in clause 2 with a later date, thereby extending the period during which the exemption from deposits and from payments through the electronic cash ledger and electronic duty credit ledger remains in effect; no other terms of the original notification are altered.