NEW DELHI – The Indian security agencies have blamed Pakistan after four major train accidents in India that took place in three months, claiming lives of more than 200 people.

The National Investigation Agency and other security agencies of India are trying to put together a set of clues, including recovery of an improvised explosive device from Champaran in India, according to reports in international media.

They believe this is connected through a cell of the underworld, a cell which is affiliated with a travel agency in New Delhi.

According to reports, two people are working for the network, one in Karachi and the other in Nepal.