An inland letter threatening to blow up the Golden Temple in Amritsar and the holy shrine of Vaisho Devi and the Raghnath temple in Jammu and Kashmir was received by the SGPC on Wednesday.
The letter, signed by one Karim Ansari of Lashkar-e-Toiba, a terrorist outfit, also threatened to blow up Amritsar and Jammu railway stations, police said.
Amritsar IGP (Border Range) Mohammed Mustafa, however, said prima facie, the letter did not appear to be a genuine one.
"It's all trash," he said when contacted.
"We have received a letter through post in which a threat was claimed to have been issued by LeT. Some two months back, we had received a similar letter threatening to blow up the Jalandhar railway station," Mustafa said.
The letter threatened to blow up the Golden temple, the Amritsar railway station and the Raghunath temple on October 6 and the Vaishno Devi shrine and the Jammu railway station two days later.
When told that SGPC had demanded adequate security around the Golden Temple after receiving the letter, Mustafa said "we already have enough security there."
He, nevertheless, said "we will not like to take any chances. We will further activate our security. Our forces will remain vigilant."