A healthcare company is evaluating a new investment in advanced medical equipment, requiring an investment of Rs. 650 lakhs. The equipment is expected to generate the following cash flows over the next six years:

Year	Cash Flow (Rs. in lakhs)
1	140
2	150
3	160
4	170
5	180
6	190

The cost of capital for the project is 9%, and the equipment will be depreciated on a straight-line basis over the project's life. The salvage value at the end of six years is estimated to be Rs. 40 lakhs. Assume no income tax.

Requirements:

1. Calculate the net present value (NPV) of the project.
2. Determine the internal rate of return (IRR) of the project.
3. Compute the payback period.
4. Evaluate the profitability index of the project.
5. Advise whether the company should proceed with the investment based on the NPV and IRR.