Year	Earnings (Rs. in lakhs)
1	180
2	190
3	200
4	210
5	220

• Initial investment: Rs. 600 lakhs
• Depreciation: 20% on a Written Down Value basis
• Scrap value at the end of five years: 50%
• Cost of raising capital: 11%
• Income tax rate: 25%

Calculate:

1. NPV
2. IRR
3. Payback period
4. Profitability index

Internal rate of return