Veeranagouda of Malavalli, Koteya G Hemanth of Jampannanayaka in Chitradurga district, Papanna and Abdul Rehman of N R Pura of Chikmagalur were arrested during the raid.
Superintendent of Police Sandeep Patil told reporters on Wednesday that the police raided the lodge on a tip off. The police suspect that the poison might have been collected from about 400 snakes. The sample has been sent to laboratory, he added.
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