Customs duty exemption for specified refractory manufacturing imports limits payable duty on certain alumina and zirconia materials.
Exempts specified inputs under Chapter 28 or 38 when imported for manufacture of refractory products from customs duty in excess of the amount calculated at the rate of 55 per cent ad valorem. The Schedule lists zirconia bubbles, tubular alumina of purity 99% and above, and calcined alumina of purity 99% and above.

Duty exemption for zirconium and yttrium oxides imported for manufacture of cubic zirconia; reduces customs and additional duty obligations.
Exempts zirconium oxide and yttrium oxide imported for manufacture of raw cubic zirconia by limiting basic customs duty to that calculated at the rate of 35 per cent ad valorem (waiving any excess) and by wholly exempting the additional duty under section 3 of the Customs Tariff Act; exemption exercised under section 25(1) of the Customs Act and confined to items in Chapter 28 of the First Schedule.

Customs exemption for silicon carbide imports used in crucible manufacture limits duty above a prescribed ad valorem threshold.
The Central Government, invoking section 25(1) of the Customs Act, exempts silicon carbide falling under Chapter 28 when imported for manufacture of crucibles from so much of the customs duty in the First Schedule to the Customs Tariff Act, 1975 as is in excess of the amount computed at an ad valorem rate of thirty five percent.

Customs exemption expanded: palm nuts and kernels added and tariff entries revised to uniform ad valorem relief.
The Central Government amends Notification No. 130/86-Cus. to insert S. No. 5A for tariff heading 1207.10 (palm nuts and kernels) with a 90% ad valorem concession, and substitutes the column (4) entries for S. No. 11A and S. No. 22 to read "90% ad valorem", effecting uniform ad valorem relief in the Table.

Customs tariff amendment: substitution of specified ad valorem rates in exemption notifications, lowering listed duty entries.
The Central Government amends Notification No. 29/89-Cus. by substituting the entries in the Table at Sl. No. 57, columns (4) and (5), with new ad valorem rates, and amends Notification No. 31/89-Cus. by substituting every occurrence of the ad valorem rate in column (4) of its Table with a different ad valorem rate, effecting direct textual changes in the tariff/exemption Tables.

Tariff amendment: ad valorem duty specified for raw and calcined petroleum coke under substituted customs notification entries.
Amendment substitutes a tariff table entry to create separate entries for raw petroleum coke and calcined petroleum coke, each assigned an ad valorem duty rate, thereby altering the tariff classification and ad valorem treatment of those petroleum coke products under the earlier notification.

Customs amendment adjusts ad valorem exemption rates for ash and residues of copper and other slags under tariff headings.
Amendment revises Notification No. 34/90-Cus by substituting the table entry at S. No. 12 to create two tariff-line entries: one classifying ash and residues of copper (including dross) with a full ad valorem rate, and a second classifying other slag and ash, including seaweed ash (kelp), with a reduced ad valorem rate, thereby separating tariff treatment for these goods under the notification.

Cap on basic customs duty for specified refractory raw materials restricts payable duty to a prescribed ad valorem rate.
The Central Government, exercising statutory power in the public interest, exempts certain refractory raw materials (specified chromite ore, fused magnesia, magnesia-chrome, magnesia-lime and magnesia-alumina sinters) falling under Chapters 25, 26, 28 or 38 of the Customs Tariff Schedule from so much of the basic customs duty as exceeds 55% ad valorem, thereby establishing a ceiling on payable basic customs duty for those goods.

Customs duty exemption on lactose for homoeopathic manufacture limits basic duty rate and waives additional duty.
Notification exempts imported lactose conforming to Homoeopathic Pharmacopoeia of India under sub heading 1702.10 for manufacture of homoeopathic medicines by limiting basic customs duty to an amount equivalent to a 15 percent ad valorem rate and by waiving the additional duty under section 3, subject to an importer's undertaking to use the goods for the specified purpose, maintain prescribed accounts, produce certified extracts within three months (or extended period), and pay on demand the duty difference if conditions are not met.

Customs duty cap for specified tariff subheadings: excess basic customs duty above the capped ad valorem rate exempted on import.
Exempts imports of goods under Sub Heading Nos. 1519.13 and 1519.19 from that portion of basic customs duty specified in the First Schedule which exceeds a cap of 100% ad valorem, thereby capping the effective basic customs duty payable on those tariff subheadings at that ad valorem rate.

Customs exemption for jaborandi leaves allows duty free import for pilocarpine manufacture subject to compliance and recordkeeping requirements.
Exemption is granted for imports of jaborandi leaves under sub heading 1211.90 for manufacture of bulk drug pilocarpine, relieving them from the whole of customs duty specified in the First Schedule, subject to an importer's undertaking to use the goods for that manufacture, maintain accounts of receipt and consumption as specified by the Assistant Collector of Customs, produce a certified extract evidencing receipt within three months or extended period, and to pay on demand the duty difference if those conditions are not met.

Customs exemption caps basic duty on specified imported goods by imposing an ad valorem ceiling at import.
The Central Government exempts all goods falling under sub heading No. 1207.10 when imported into India from so much of the basic customs duty specified in the First Schedule as is in excess of a specified ad valorem ceiling, exercising statutory power on public interest grounds.

Customs duty cap on donkey stallions limits excess levy for government imports for mule breeding.
Donkey stallions falling within Chapter 1, when imported into India by the Government of India or a State Government for the purpose of breeding mules, are exempted from so much of the basic customs duty specified in the First Schedule to the Customs Tariff Act as is in excess of an ad valorem rate of thirty-five percent, by exercise of the power under section 25(1) of the Customs Act, 1962, in the public interest.

Exchange rate determination establishes the conversion rate for the Russian rouble into Indian currency under Customs law.
Central Government determines the rate of exchange for conversion of one Russian rouble into Indian currency and vice versa, fixing the rate at Rupees 29.9364, effective from 10th July 1991, under the relevant provision of the Customs Act and superseding the earlier notification.

Appointment of Customs Officers amended to include Collector of Central Excise, Raipur as a designated customs officer.
Under the statutory power conferred by sub section (1) of section 4 of the Customs Act, 1962, the Central Government amends Notification No. 17/90-Customs (N.T.) by inserting Collector of Central Excise, Raipur into the Table as an additional designated customs officer, thereby recognizing that post as a customs officer for the purposes of the notification.

Appointment of Customs Officers updates jurisdictional assignments for Collector of Customs (Appeals) Bhopal across specified collectorates.
Amendment substitutes a table entry to designate Collector of Customs (Appeals), Bhopal as the officer responsible for the Central Excise Collectorate, Indore and Raipur (Madhya Pradesh) and Central Excise Collectorate, Nagpur (Maharashtra), effectuating an administrative reassignment under the Customs Act, 1962.

Appointment of Customs Officers: amendment adds Raipur to the territorial listing in clause (a) of the notification.
The Central Government, exercising powers under the Customs Act, amends clause (a) of paragraph 3 of Notification No. 252/83-Customs by substituting the existing territorial designation with an expanded designation to include an additional location alongside the original one, thereby altering the geographic listing used for appointment or designation of the proper officer/Common Adjudicating Authority.

Exchange Rates amendment establishes official foreign currency conversion rates for customs and stamp law purposes, effective upon notification.
Amendment substitutes the earlier notification's schedule by replacing the entries for eighteen specified foreign currencies with new official conversion rates to be applied for customs and stamp law purposes, issued under the Indian Stamp Act and the Customs Act, and specifies the date from which these rates are effective.

Exchange rate determination: Russian rouble conversion rate set under Customs Act for import-export valuation and duties.
An official conversion rate for the Russian rouble is prescribed under the Customs Act for purposes of customs valuation and related statutory calculations; this notification supersedes the earlier government notification and specifies the effective date from which the new conversion rate must be applied by customs authorities.

Exchange rate amendment updates official currency conversion rates under statutory authority, effective from the notified date.
The Central Government amends an existing customs notification by substituting revised exchange rates for specified foreign currencies in the notification schedule, these substituted rates to operate from the notified effective date and thereby update official conversion benchmarks for customs and related non-tariff purposes.