  The 1p transfer channel in the $^{27}$Al($^{12}$C, $^{11}$B)$^{28}$Si
reaction has been studied at E$_{lab}$ = 73, 81 and 85 MeV. The finite range
distorted wave Born approximation calculations have been performed using
phenomenological optical model potential to analyze the angular distributions
for 3 transitions populating the 0.0, 1.78 and 4.62 MeV states of $^{28}$Si and
2 transitions populating the 2.12 and 4.44 MeV states of $^{11}$B via the
$^{27}$Al($^{12}$C, $^{11}$B)$^{28}$Si reaction. The spectroscopic strengths as
well as spectroscopic factors have been extracted for all the five states. The
extracted strength values are compared with shell model calculations.
