  The dynamics of the reactions forming compound nuclei using loosely bound
projectiles is analysed within the framework of dynamical cluster decay model
(DCM) of Gupta and Collaborators. We have analysed different reactions with
$^{7}Li$, $^{9}Be$ and $^{7}Be$ as neutron rich and neutron deficient
projectiles, respectively, on different targets at the three $E_{lab}$ values,
forming compound nuclei within the mass region A$\sim 30-200$. The
contributions of light particles LPs ($A\le4$) cross sections $\sigma_{LP}$,
energetically favoured intermediate mass fragments IMFs ($5 \le A_2 \le 20$)
cross sections $\sigma_{IMF}$ as well as fusion-fission $\it{ff}$ cross
sections $\sigma_{ff}$ constitute the $\sigma_{fus}$
(=$\sigma_{LP}$+$\sigma_{IMF}$+$\sigma_{ff}$) for these reactions. The
contribution of the emitted LPs, IMFs and ff fragments is added for all the
angular momentum upto the $\ell_{max}$ value, for the resepctive reactions.
Interestingly, we find that the $\Delta R^{emp}$, the only parameter of model
and uniquely fixed to address the $\sigma_{fus}$ for all other reactions having
$\it same$ loosely bound projectile at the chosen incident energy. It may be
noted that the dynamical collective mass motion of preformed LPs, IMFs and ff
fragments or clusters through the modified interaction potential barrier are
treated on parallel footing. We see that the values of modified interaction
barrier heights $\Delta V_{B}^{emp}$ for such reactions are almost of the same
amount specifically at the respective $\ell_{max}$ values.
