Police had registered a case under IPC sections 124 (sedition) and 153A (promoting enmity between different groups on grounds of religion, place of birth, residence, language) against Vaiko for a speech he had given while releasing his book, 'Naan Kutram Sattugiren' (I am Making the Accusation), in 2009.
The charge-sheet in the case was filed in 2010. However, the trial is yet to commence. On April 3 this year, Mr Vaiko had appeared before Metropolitan Magistrate S Gopinathan and filed a surrender petition.
Although the magistrate had offered to release Mr Vaiko on bail, he refused to apply for it.
Mr Vaiko had moved a bail application yesterday. When it came up for hearing today, Additional City Civil Court Judge Purushothaman granted unconditional bail to him.