Unknown group threatens New Year attacks in Indian city

High-tech businesses, the Indian space agency and nuclear facilities today stepped up security across southern India following threats to target a top politician and launch suicide attacks against New Year’s revellers in India’s technology hub.

Police set up barricades, patrolled streets and searched cars today in Bangalore, trying to thwart possible bombings and find those behind an attack two days earlier on a science institute that killed a retired professor, said the police chief of the southern state of Karnataka state, BS Sial.