20 June 2014
well it is a dicey one. reason being section 25 companies dont do business (forget companies act for a minute).
So where do they claim depreciation after claiming full deduction in year or purchase? well it has been decided in favor of assessee on several occasions. please refer http://fmsfindia.org.in/publication_upload/standard/s&n-ls-v4-i6.pdf
20 June 2014
as far as Income-tax Act is concerned, you can avoid charging given that either:
1. the asset is purchased out of capital contributions and not routed through the profit & Loss A/c
or
2. bought out of general donations and deduction claimed at 100% in the first year itself.
nevertheless, the debate has always been on whether the charitable organization allowed to claim depreciation even if the 100% deduction has already been claimed. On this question it has been repeatedly held that you can do so.