India on Monday said it would issue visas on urgent basis for relatives of Pakistani nationals killed or injured in the blast in the Delhi-Attari special train bound for Lahore.
"Visas will be issued immediately for the relatives of the passengers who were either killed or injured in the incident so that they could travel to the Indian side," a senior official of the Indian High Commission in Islamabad said.
The relatives could travel to otherside of the border in order to help their injured relatives or identify those killed in the explosions, the official said.
At least 64 people have been killed in suspected IED blasts in two coaches of Delhi-Attari special train for Lahore in Deewana in Panipat.
Officials in Islamabad said that the government was deeply concerned over the incident and a report was sought from Pakistan High Commission in New Delhi.
The news of the explosion in the train was received with deep concern in Islamabad as it took place a day before Pakistan Foreign Minister Khurshid M Kasuri travels to New Delhi for a three-day visit to hold talks with his Indian counterpart Pranab Mukherjee.
Kasuri will be in New Delhi to attend the Indo-Pak Joint Commission meeting as well as to hold talks with the Indian leadership on taking the peace process between the two countries forward.