To calculate the compound interest, we can use the formula:

A = P (1 + R/100)^T

Where:

• A = the future value of the investment/loan, including interest
• P = the principal investment amount (the initial deposit or loan amount)
• R = the annual interest rate (as a percentage)
• T = the time the money is invested or borrowed for, in years

In this case:

• P = Rs 5000
• R = 8%
• T = 3 years

So, A = 5000 * (1 + 8/100)^3

A = 5000 * (1 + 0.08)^3

A = 5000 * (1.08)^3

A = 5000 * 1.259712

A = Rs 6298.56

Compound Interest = A - P

Compound Interest = 6298.56 - 5000

Compound Interest = Rs 1298.56

Therefore, the compound interest is Rs 1298.56.