For Moodle 2.1.5 (Build: 20120312)
Registration enrollment plugin
from where to download it. can some one guide me
I don't know for certain but this looks like an old 1.9 plugin - http://moodle.org/mod/data/view.php?d=13&rid=4269
There doesn't appear to be a 2.x version.
There doesn't appear to be a 2.x version.