Excise duty increase prompts amendment of multiple central excise notifications, revising tariff rates and motor car duty descriptions. Amendments modify specified central excise notifications by substituting existing percentage entries with higher percentage rates and revising motor car-related duties, including replacements of composite percentage-plus-fixed chassis or per-unit additions and omission of a specified serial entry; the changes are effected by direct substitutions in the Tables of three principal notifications under the Government's powers under section 5A(1) of the Central Excise Act.