Exporting simple multiple objects from Houdini to Maya

Assuming... you've duplicated objects around, animated them etc... AND the objects are single mesh things. Eg. a Sphere, a torus.... Not a multi-object thing.

Create a "connectivity" node and set the connectivity type to Primitive. This should be connected to the group of objects you're exporting.

This creates a Primitive attribute which assigns an integer value, based on the object's "shell".
eg. the primitives in Cube 1 might have a value of 0, Cube3 might have a value of 4 or whatever..

Connect a Primitive Wrangle and put in:

s@path = 'fish_GRP/fish_' + itoa(i@class) + '_GEO/fish_'+ itoa(i@class)+'_GEOShape';

where the path attribute created is making a group called "fish_GRP" and objects called "fish_1_GEO" and their respective Maya shape nodes called "fish_1_GEOShape".

It seems necessary to build the complete hierarchy for Maya, otherwise the individual shape nodes are not so easily accessible..

Finally, using a ROP_Alembic node, output your file, making sure that you have
"Build Hierarchy from Attribute" ticked ON, and set to "path".
The other bits are left as default...