Kalak has garnered controversy through videos that purportedly show him healing the sick, possessed and people with disabilities using Quranic verses.

Hundreds of people visited Kalak's office in Istanbul after he advertised his "healing practices" on social media. One of his customers, a parent to a child with autism, recorded his beatings and showed them to the police. 

Three people at his office were detained.

Strangely, people waiting for Kalak in front of his office to be healed slammed those who complained about him.