  A recent attempt to arrive at a quantum version of Raychaudhuri's equation is
looked at critically. It is shown that the method, and even the idea, has some
inherent problems. The issues are pointed out here. We have also shown that it
is possible to salvage the method in some limited domain of applicability.
Although no generality can be claimed, a quantum version of the equation should
be useful in the context of ascertaining the existence of a singularity in the
quantum regime. The equation presented in the present work holds for arbitrary
$n + 1$ dimensions. An important feature of the Hamiltonian in the operator
form is that it admits a self-adjoint extension quite generally. Thus, the
conservation of probability is ensured.
