How to specify where the package description is?

roslaunch mrm_descrtiption rviz.launch
Is there a way to specify that this package description and launch file should be taken from the simulation_ws and not catkin_ws

I am trying to reproduce from the YouTube video above

Hello @tnkumar ,

I can’t see the video. In any case, the way ROS decides where to search for packages is by the environment variable ROS_PACKAGE_PATH. ROS will search for packages in the paths specified in this variable, going in order from 1st to last.

So, if you have this package in 2 different paths, you should put the one you want first.

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Thanks. That helped.