Step1

Go to Playstore and download NZB30 : https://play.google.com/store/apps/details?id=com.kevinforeman.nzb360&pcampaignid=MKT-Other-global-all-co-prtnr-py-PartBadge-Mar2515-1

Step 2: Open setting in NZB30

Step 3: Select the purple icon torrents

Step 4: Fill in the details as below

Torrent client : rTorrent/ruTorrent

Primary Connection address: https://yourusername:[email protected]

ruTorrent Username : Your username

ruTorrent Password : Your Password

Path to XML-RPC API : /rutorrent/plugins/httprpc/action.php

Click Test Connection

It should look like this