A company is planning to invest Rs. 600 lakhs in a new project, which will involve expenditures on machinery and equipment. The expected earnings before depreciation and taxes over the next six years are as follows:

Year	Earnings (Rs. in lakhs)
1	200
2	220
3	240
4	250
5	270
6	260

The project involves a depreciation of 25% on a straight-line basis. The cost of raising additional capital is 10%. The scrap value at the end of the project is estimated to be Rs. 100 lakhs. The applicable tax rate is 30%.

Requirements:

1. Calculate the annual depreciation.
2. Compute the after-tax earnings for each year.
3. Determine the net cash flow for each year.
4. Calculate the Net Present Value (NPV) of the project.
5. Determine the Internal Rate of Return (IRR) for the project.