GHI Enterprises is considering an investment of Rs. 450 lakhs in new equipment. The expected earnings before depreciation and taxes over the next five years are:

Year	Earnings (Rs. in lakhs)
1	130
2	150
3	170
4	190
5	210

The cost of capital is 11%, and the equipment will depreciate at 22% on a written-down value basis. The residual value at the end of five years is estimated at Rs. 90 lakhs. No taxes apply.

Requirements:

1. Calculate the net present value (NPV).
2. Determine the internal rate of return (IRR).
3. Compute the payback period.
4. Assess the return on investment (ROI).
5. Make a recommendation based on the project's financial viability.