Kerala police and central agencies have launched an investigation into a letter threatening a suicide bomb attack on Prime Minister Narendra Modi who will be visiting the state on April 24 and 25 to take part in various programmes.
The letter in Malayalam, purportedly written by a Kochi resident, was received at the office of BJP state president K Surendran who in turn had handed it over to the police last week.
Meanwhile, Kochi resident N J Johny, whose name and number were there in the alleged threat letter, today said he was innocent.
"Police have questioned me. I have given them all the details. They crosschecked the handwriting and everything," he told the media.
His family said they suspect another person from the locality, who has some issues with them over some matter related to a church, behind the letter.