Tax deduction for skill development projects: enhanced allowance for qualifying company expenditure, later limited to basic allowance. A company incurring expenditure (excluding land or building costs) on a Board-notified skill development project complying with prescribed guidelines may claim a special deduction for that expenditure; previously this deduction was enhanced to one and one-half times the expenditure, but was later amended to a deduction equal to the actual expenditure. If claimed and allowed under this section for an assessment year, the same expenditure cannot be deducted under any other provision for the same or another assessment year.