27 November 2008
If u have incurred any expenditure during incorporation of ur business or at the time of extension of ur business, then such expenditure is allowed to be amortised in 5 equal installments starting from the year in which u actually started ur business activities.
However, the total expenditure can't exceed 5% of the project cost.
For detail of expenditures covered u/s 35D, please refer some book.