  In this paper we analyse the ABJM theory in ${\cal N}=1$ superspace.
  Firstly we study the linear and non-linear BRST transformations for the ABJM
theory. Then we derive the finite field dependent version of these BRST
(FFBRST) transformations. Further we show that such FFBRST transformations
relate the generating functional in linear gauge to the generating functional
in the non-linear gauge of ABJM theory.
