Natesan, who surrendered before the investigating officer at Aluva this morning on the direction of the Kerala High Court, was taken to the First Class Judicial Magistrate Court-1 there, after his statement was recorded.
The court released him on bail after he executed a bond for Rs 25,000 with two solvent sureties each.
The High Court had granted anticipatory bail to the SNDP leader last month.
The court had heard the speech made by Natesan which was recorded in a compact disc.
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Director General of Prosecutions T Asaf Ali had opposed the grant of anticipatory bail and submitted that Natesan's speech tended to encourage hatred among different communities.
While leading the 'Samathwa Munnetta Yatra', organised to unite Hindu caste outfits, Natesan had alleged that the Congress-led UDF government was giving financial assistance to families of mishap victims on the basis of caste and religion.