A company is evaluating the following projects:

Year	Project T (₹)	Project U (₹)
0	-18,000	-21,000
1	4,000	6,000
2	5,000	5,000
3	7,000	7,000
4	9,000	8,000

Requirements:

1. Calculate the payback period for each project.
2. If the payback period threshold is 3 years, which project would be selected?
3. Calculate the discounted payback period at a 6% discount rate.
4. Decide which project fulfills a 2.5-year discounted payback period requirement.
5. Evaluate the NPV for each project and recommend the superior project.