Interest may be awarded in a case in two distinct circumstances, namely: (i) As of right: and (ii) Where there is a power conferred by statute to do so, in exercise of the Court’s discretion. Interest may be claimed as a right where it is contemplated by the agreement between the parties, or under a mercantile custom, or under a principle of equity such as breach of a fiduciary relationship. Where interest is being claimed as a matter of right, the proper practice is to claim entitlement to it on the writ and plead facts which show such an entitlement in the statement of claim. See Per NNAEMEKA-AGU, JSC in EKWUNIFE V. WAYNE WEST AFRICA LTD (1989) LPELR-1104(SC) (PP. 33-42, PARAS. C-A).
— U.M. Abba Aji, JSC. Cappa v NDIC (2021) – SC.147/2006