What is the general rule that an oversecured creditor's right to postpetition interest under Chapter 13 of the Bankruptcy and Insolvency Act?

While the above may state the general rule, an oversecured creditor's right to postpetition interest is qualified by, and must be understood in the context of, the interplay that exists between 11 U.S.C. 1322(b) and 1325(a) with respect to modification and cure. See Seidel v. Larson (In re Seidel), 752 F.2d 1382, 1383-86 (9th Cir.1985) (discussing modification and cure under Chapter 13 as applied to secured creditor with interest in debtors' principal residence).