DEF Inc. plans to undertake a new project involving an investment of Rs. 550 lakhs. Expected earnings before depreciation and taxes for the next five years are as follows:

Year	Earnings (Rs. in lakhs)
1	150
2	170
3	190
4	210
5	230

The additional capital cost is 13%, and the assets will depreciate at 18% on a straight-line basis. The salvage value is projected to be Rs. 80 lakhs after five years. No income tax is applicable.

Requirements:

1. Compute the net present value (NPV).
2. Calculate the internal rate of return (IRR).
3. Determine the discounted payback period.
4. Calculate the profitability index.
5. Provide a recommendation on the project's feasibility.