A letter purportedly by terror outfit Lashkar-e-Tayiba has threatened to blow up Haridwar railway station and temples which abound in the city on December 29, police said on Thursday.
The mosque's maulana and the mazar's caretakers said they were not aware of any administrative order in this regard and claimed this was for the first time that such a step had been taken during the yatra.
The railway police in Haridwar has received a letter purportedly sent by Pakistan-based terror group Lashkar-e-Toiba threatening to attack top government functionaries and vital installations in Uttarakhand during the festival season, police said on Thursday.
Terrorist organisation Lashkar-e-Tayiba has threatened to blow up railway stations in Haridwar, Dehra Dun and Rishikesh on Independence Day.
The labourers, who are said to be of Nepali origin, were engaged in the construction of a hotel.
10 women and six minors are among the injured, the officials said.