Odisha has been put on high alert after intelligence inputs suggested that three armed terrorists from Pakistan have entered India, police said.
"High alert have been issued across the state based on security threat information received from the Intelligence Bureau and other security agencies, " Director General of Police K. B. Singh said.
He said security has been beefed up around key installations like airports, malls, Hirakud dam and religious sites.
All district collectors and police superintendents have been told to stay alert.
Five members of the outlawed Students Islamic Movement of India (SIMI) were arrested in Rourkela in February, while an operative of the Al Qaeda in the Indian Subcontinent (AQIS) terrorist group was arrested in the state in December last year.