1. "buildings" include roads, bridges, culverts, wells and tube-wells.
2. "factory buildings" does not include offices, godowns, officers and employees' quarters, roads,
bridges, culverts, wells and tube-wells.
3. "speed boat" means a motor boat driven by a high speed internal combustion engine capable of
propelling the boat at a speed exceeding 24 Kilometers per hour in still water and so designed that
when running at a speed it will plane, i.e., its bow will rise from the water.
4. Where, during any financial year, any addition has been made to any asset, or where any asset has
been sold, discarded, demolished or destroyed, the depreciation on such assets shall be calculated on a
pro rata basis from the date of such addition or, as the case may be, up to the date on which such asset
has been sold, discarded, demolished or destroyed.
5. The following information should also be disclosed in the accounts:
(i) depreciation methods used; and
(ii) depreciation rates or the useful lives of the assets, if they are different from the principal
rates specified in the Schedule.
6. The calculations of the extra depreciation for double shift working and for triple shift working shall
be made separately in the proportion which the number of days for which the concern worked double
shift or triple shift, as the case may be, bears to the normal number of working days during the year. For
this purpose, the normal number of working days during the year shall be deemed to be-
(a) in the case of a seasonal factory or concern, the number of days on which the factory or
concern actually worked during the year or 180 days, whichever is greater; (b) in any other
case, the number of days on which the factory or concern actually worked during the year or
240 days, whichever is greater.
The extra shift depreciation shall not be charged in respect of any item of machinery or plant which has
been specifically, excepted by inscription of the letters "N.E.S.D." (meaning "No Extra Shift
Depreciation") against it in sub-items above and also in respect of the following items of machinery and
plant to which the general rate of depreciation of 13.91 per cent applies-
(1) Accounting machines
(2) Air-conditioning machinery including room air-conditioners
(3) Building contractor's machinery.
(4) Calculating machines.
(5) Electrical machinery - switchgear and instruments, transformers and other stationary plant
and wiring and fitting of electric light and fan installations.
(6) Hydraulic works, pipelines and sluices