A company is considering an investment of ₹650 lakhs in a new facility. The expected cash flows from the facility over the next seven years are as follows:

Year	Cash Flow (₹ in lakhs)
1	160
2	170
3	180
4	190
5	200
6	210
7	220

The discount rate is 10%, and the facility has no salvage value at the end of its life. The depreciation method is 20% per year on a straight-line basis.

Required:

1. Calculate the NPV of the investment.
2. Determine the IRR.
3. Compute the Profitability Index.
4. Analyze the project's sensitivity to a 15% increase in initial investment.
5. Evaluate the impact of different depreciation methods on the project's financial metrics.