  In this work we develop an alternative approach for solution of Quantum
Trajectories using the Path Integral method. The state-of-the-art technique in
the field is to solve a set of non-linear, coupled partial differential
equations (PDEs) simultaneously. We opt for a fundamentally different route. We
first derive a general closed form expression for the Path Integral propagator
valid for any general potential as a functional of the corresponding classical
path. The method is exact and is applicable in many dimensions as well as
multi-particle cases. This, then, is used to compute the Quantum Potential
(QP), which, in turn, can generate the Quantum Trajectories. For cases, where
closed form solution is not possible, the problem is formally boiled down to
solving the classical path as a boundary value problem. The work formally
bridges the Path Integral approach with Quantum Fluid Dynamics. As a model
application to illustrate the method, we work out a toy model viz. the
double-well potential, where the boundary value problem for the classical path
has been computed perturbatively, but the Quantum part is left exact. Using
this we delve into seeking insight in one of the long standing debates with
regard to Quantum Tunneling.
