Security agencies were examining CCTV footage at the site of the blast at a Ganga ghat in Varanasi which left a child dead and 37 injured even as a forensic team from Agra collected samples from the spot.
Uttar Pradesh Chief Minister Mayawati on Wednesday vehemently refuted Union Home Minister P Chidambaram's claim that the Centre had forewarned the Uttar Pradesh government against a possible terrorist strike in Varanasi.
Here is the chronology of major blasts in the country:
Other than detention of three labourers, the local police and the Uttar Pradesh Anti-Terrorist Squad has failed to make any headway in the Varanasi blast case so far.
One infant and 22 others, including some foreigners, were injured in a blast that rocked the crowded Shitla Ghat bank of the Ganga river in Varanasi , about 300 km from Lucknow on Tuesday evening.