  The inclusive cross sections of the $\alpha$-particles produced in the
reaction $^{6}$Li+$^{159}$Tb have been measured at energies around the Coulomb
barrier. The measured cross sections are found to be orders of magnitude larger
than the calculated cross sections of $^{6}$Li breaking into $\alpha$ and $d$
fragments, thus indicating contributions from other processes. The experimental
cross sections of $1n$-stripping and $1n$-pickup processes have been determined
from an entirely different measurement, reported earlier. Apart from incomplete
fusion and/ $d$-transfer processes, the $1n$-stripping process is found to be a
significant contributor to the inclusive $\alpha$-particle cross sections in
this reaction.
