(4)All expenses (not being expenditure in the nature of cost of any land or building), incurred wholly and exclusively for undertaking a notified skill development project shall be eligible for deduction under section 35CCD :Provided that any expenditure incurred on the skill development project which is reimbursed or reimbursable to the company by any person, whether directly or indirectly, shall not be eligible for deduction under section 35CCD.