law: Transfer of Property Act, 1882
  77. Receipts in lieu of interest
  Nothing in section 76, clauses (b), (d), (g) and (h), applies to
  
  cases where there is a contract between the mortgagee and the mortgagor that
  
  the receipts from the mortgaged property shall, so long as the mortgagee is in
  
  possession of the property, be taken in lieu of interest on the principal
  
  money, or in lieu of such interest and defined portions of the principal.