Excisable Good - defined in the Act, u/s 2(d) as Maneet mentioned.. is Good which are mentioned in CETA including Salt subject to rate of duty... Nil Rate is also counted as Rate as upheld by judiciary...
All Excisable Goods need not to be Duitable (Nil Rates and Exempted Goods are non duitable and others are duitable)...
Good - Mentioned in CETA - Rate of Duty (including Nil Rate) - Excisable - whether exempt or not...
Duitable Goods - Excisable Goods on which duty is payable (ie except Nil Rated and Exempted Excisable Goods, all Excisable Goods are Duitable)...
All Duitable Goods are excisable...
Good - Mentioned in CETA - Rate of Duty (Except Nil Rate) - Excisable - Exempt - Non Duitable
Good - Mentioned in CETA - Rate of Duty (Except Nil Rate) - Excisable - Not Exempt - Duitable