Deliverance Ministry is similar to exorcism
Not exactly, or really even vaguely. Like most Protestant stuff it's watered down Catholic teaching with the ritual stripped out. Like other such things it's taken way, way, way too far.
First of all, like all Catholic stuff it's required that an elaborate - some might even call it Byzantine - formal process be followed, so first only a priest (or higher prelate) can perform it. And before they do they have to have the expressed written permission of the local bishop, who's only going to give it after a full and careful medical examination to exclude the possibility of mental illness. After with point, it is conducted based on a Rituale Romanum.
Contrary to popular opinion, it is, and always has been, EXCEEDINGLY RARE until the 1990, when religion began to be abandoned in vast numbers by young people (exorcism is almost never done to 50 year olds, it's done to teenagers) and lacking any vision, reason or appeal they had to fall back on The Church Lady from Saturday Night Live and thought 'Could it be Satin?'
In the Protestant version, anyone, (you don't even need a degree from Ed's Bible College and Auto Lube Shop) can do it. That there is a 'ministry' devoted to it is more in lines with the Protestant versions of using the church to make money above all else.
But mostly, it's kidnapping and brainwashing under a religious veneer.