Masood, 40, who was arrested in the wee hours by police from his residence here, said he had done no wrong.
"It is all BJP's plotting. I don't have any remorse as I did no wrong. I will not apologise either to Narendra Modi or to the BJP," the Congress leader, who had yesterday expressed regret for his remarks, told reporters.
Masood would be produced in a Deoband court later in the day.
SSP Saharanpur Manoj Kumar said, "We received a video footage of Masood. Based on its review a case was registered in Deoband Police Station against him".
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"Cases have been registered against him under section 295 A (deliberate and malicious acts, intended to outrage religious feelings or any class by insulting religion or religious beliefs), 504 (Intentional insult with intent to provoke breach of peace), 506 (criminal intimidation) of IPC, Section 125 (promoting enmity between classes in connection with election) of Representation of People Act, and 310 SC/ST Act," he said.
The Congress candidate was seen in the video as saying that "If Modi tries to make Uttar Pradesh into Gujarat, then we will chop him into tiny pieces...I am not scared of getting killed or attacking someone. I will fight against Modi. He thinks UP is Gujarat. Only 4 per cent Muslims are there in Gujarat while there are 42 per cent Muslims in UP.