Thiruvananthapuram, Jan 31: The Kerala government was duty bound to prevent religious preaching by missionaries visiting the state on tourist visa, Chief Minister A K Antony told the legislative assembly today. Replying to a submission by Raju Abraham (CPI-M) on the recent attack on Pentacost churches at Bathery and Pallipad in Wayanad and Alappuzha districts respectively, Antony said it was illegal to engage in religious preaching while visiting on tourist visa. While investigation into the church attack case at Bathery was progressing, one person was arrested in connection with the incident at Pallipad, he said. Bureau Report