  In this work we prescribe a more generalized quantum-deleting machine (input
state dependent). The fidelity of deletion is dependent on some machine
parameters such that on alteration of machine parameters we get back to
standard deleting machines. We also carried out a various comparative study of
various kinds of quantum deleting machines. We also plotted graphs, making a
comparative study of fidelity of deletion of the deletion machines, obtained as
particular cases on changing the machine parameters of our machine.
