I have used the types plugin and added a custom taxonomy. Under the Taxonomy i have created 3 categories. Now my question is that how can i attach a image to those categories. If you think about any plugins, I have used taxonomy Images and others. Those plugins have added the image to default category. But not to the custom taxonomy categories.
Custom taxonomy category images
You can use the Advanced Custom Fields plugin to add a custom field (an image field) to you custom taxonomy group or individual taxonomies.
I had a similar requirement for my site and I gone through this from Bainternet.info and got it working charmly
Here is the repo from github
If you want to use plugin, then I think this is best up to now:
WordPress Plugin :: Categories Images
This plugin supports any types of custom taxonomy and uses WP media gallery; It’s quick edit feature is very nice;
To know more about it visit here: Documentation