A low-intensity bomb found in a toilet on a train bound for Amritsar early Thursday. Photo: The Times of India

A low-intensity bomb was found in a toilet on an express train when it reached Uttar Pradesh’s Amethi town early Thursday morning, along with a letter stating that it was intended as revenge for the recent killing of Abu Dujana, a senior Lashkar-e-Taiba militant, in Jammu and Kashmir, according to media reports.

At around 1:30 am, passengers on the Akal Takht Express raised the alarm after a traveler found the bomb, which had wires wrapped around it, in a toilet. The note read, “Dujana ki shahadat ka badla ab Hindustan ko chukana padega”  (India will have to pay for Dujana’s martyrdom).

After they defused the bomb, the police conducted a five-hour security check before allowing the train to resume its journey from Kolkata to Amritsar at about 7:30 am.

Dujana, who had a Rs15 lakh (US$23,000) bounty on his head, was believed to be one of the masterminds behind numerous militant attacks across south Kashmir. He was gunned down by security forces in Kashmir on August 1.