Dhar, who has been dubbed "Jihadi Sid" by the British media, uploaded the monologue about his hatred of Jews and "Zionism" on YouTube in 2014.
"Other people were aware of this evil doctrine and they did things to stop it. Like Adolf Hitler," said Dhar praising Dhar.
Dhar also mentions the 'Protocols of the Elders of Zion', a discredited 1909 text claiming a Jewish plan for global domination, saying the document "exposes their (Jews) hatred of humanity".
"They have no qualms with wanting to subjugate them (other religions), oppress them and exploit them," he adds. The 32-year-old former bouncy castle salesman from Britain is believed to be the masked man who appeared in a brutal ISIS beheading video.
The Indian origin Dhar alias Abu Rumaysah who fled Britain in 2014 while on bail, was the focus of investigations into the video.
Dhar originally a Hindu converted to Islam and joined the radical group al-Muhajiroun led by Bangladesh-origin preacher Anjem Chowdhuri. He was arrested in September, 2014 in the UK along with eight others on suspicion of encouraging terrorist offences. Dhar was released on bail to reappear in December but he fled.
OneIndia News (With agency inputs)