I'm doing layout of a filter on diff paths..so the components (R, C & L) must also be placed symmetrically.
I've done placement on one path and (for symmetry) copied the components & placed them on the other path.but
the problem is i'm not able to map the copied components (symbols) to
the original component names on the second path.
how to map/name symbols tocomponents
Depends on the license you have. If you have OrCAD Professional then use the Place Replicate command to create a repeatable reuse module. See http://www.youtube.com/watch?v=2VVP5UaNvDU.
If you have OrCAD Standard then once you have copied the placement the parts will be labelled R*, C* , L* etc. Use Logic - Assign Refdes and then from the Options menu get a list of avaliable RefDes and pick the refdes you require and map the placed parts.