India, Feb. 19 -- Two explosions on the Delhi-Attari Express that caused a fire killed at least 66 passengers late on Sunday night, pushing the government to announce a new security drill for the vital train link to Pakistan.

The Indian and Pakistani governments called the blasts an act of terror aimed at derailing the peace process between the two countries. No group has claimed responsibility.

Railways Minister Lalu Prasad said security on the train would be stepped up and its departure point would be shifted to another location from the crowded Old Delhi Station, where it was difficult to ensure watertight security.

Security measures similar to those at airports will be introduced for the train. Heavier security escort will monitor ...