Even as investigations are on into Tuesday's Varanasi bomb blast, three crude bombs were discovered in Allahabad, about 120 km from Varanasi, on Thursday.
The low-intensity bombs were defused by a bomb disposal squad. Though the situation in Allahabad was described as normal, vigil has been stepped up.
Uttar Pradesh Additional Director-General (Law and Order) Brij Lal said the crude bombs, wrapped in polythene, were kept in a waste disposal cart in a lane in Chak Bahadurganj.
In the Varanasi blast case, the forensic team returned to Agra after collecting material from the Shitla Ghat site. The results are expected to be known on Friday, Mr. Lal said.
Though the blast probe had been transferred to the Anti-Terrorism Squad, a team of the National Investigation Agency and some Central government experts were also in Varanasi in connection with the investigation, he said.
Mr. Lal said there was no breakthrough in the case and no information on the involvement of any person or terrorist organisation in the blast. About the suspected mastermind, Shahnawaz, and the alleged involvement of the Indian Mujahideen (IM), Mr. Lal said some IM members from Azamgarh were wanted in some cases, but their involvement in Tuesday's blast was yet to be proved.
Unconfirmed reports have stated that the police raided some places in Azamgarh district on Tuesday and Wednesday in a bid to find crucial leads. Reports also said a red corner notice had been issued against Dr. Shahnawaz.