Transfer of Property Act, 1882
93. Prohibition of tacking
No mortgagee paying off a prior mortgage, whether with or
without notice of an intermediate mortgage, shall thereby acquire any priority
in respect of his original security; and, except in the case provided for by
section 79, no mortgagee making a subsequent advance to the mortgagor, whether
with or without notice of an intermediate mortgage, shall thereby acquire any
priority in respect of his security for such subsequent advance.