"Our officials took Singh into custody after he reached Bangalore from Singapore where he had gone for heart treatment," a CBI official said.

Singh was whisked away to the agency's office in the northern suburb of the city. A warrant was pending against him from the CBI's special court under the Prevention of Corruption Act and the Indian Penal Code (IPC).

"We will produce him in our special court later in the day after medical examination to seek his custody for further interrogation," the official said on the condition of anonymity.

Singh was elected from Vijayanagara in the mineral-rich Bellary district, about 330 km from Bangalore, on BJP ticket in the May election. Singh was tourism minister for eight months from September 2012 to May 2013 during the BJP's government.


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