A project requires an initial investment of Rs. 1,000 lakhs and is expected to generate the following cash flows over its life:

Year	Cash Flow (Rs. in lakhs)
1	250
2	270
3	290
4	310
5	330

The cost of raising capital is 13%, and the project assets will depreciate at 10% annually using the written-down value method. The salvage value at the end of five years is Rs. 200 lakhs.

Required:

1. Calculate the net present value (NPV).
2. Determine the internal rate of return (IRR).
3. Compute the annual depreciation expenses.
4. Evaluate the payback period.
5. Assess the project's viability based on financial criteria.