According to the Indian Partnership Act, 1932, if a partner provides a loan to the firm, the interest rate agreed upon between the partner and the firm is applicable. In this case, the agreed rate is \(10\%\) per annum. Therefore, Nisha will be entitled to receive interest at \(10\%\) p.a.
If there is no specific agreement regarding the interest rate, the default rate under the Indian Partnership Act, 1932, is \(6\%\) per annum. However, since the rate of \(10\%\) was mutually agreed upon, this rate will be honored.
Conclusion:
Interest on Nisha's loan will be paid at \(10\%\) p.a. as per the agreed terms.