Bangalore police have arrested one more person in connection with the terrorist attack at the Indian Institute of Sciences in Bangalore in December 2005.

Thirty-five year old suspected Lashkar-e-Tayiba militant Habib alias Mehboob Ibrahim was apprehended at Almatti in Bagalkot district in northern Karnataka Sunday, police said in Bangalore Monday.

• Terror attack at IISc, Bangalore; 1 killed, 4 injured

Explosives and some documents were seized from him, they said.

Police said Habib and Abdul Rehman, who was arrested earlier in connection with the attack, along with other members of the group were planning explosions at Kaiga nuclear plant and Almatti dam in Karnataka.

Karnataka Director General of Police B S Sial told reporters, "This is the second person we have caught. This is all gang of LeT."

Asked whether it was a breakthrough, he said, "Unless I catch hold of the real person who has shot (M C Puri, retired professor of Indian Institute of Technology, Delhi), these are conspirators and participants."

Bangalore Police Commissioner Ajay Kumar Singh said investigation conducted so far had shown that Rehman was one of the important LeT functionaries in south India and had operational contacts in Pakistan, Bangladesh, Andhra Pradesh and Chennai.

Rehman, who was in Saudi Arabia since 1994 and was arrested at Nelagonda in Andhra Pradesh, had been raising funds, recruiting people and organising their training in Pakistan and Bangladesh and procuring weapons and explosives for building the LeT network for disruptive activities, he said.

Rehman's connections in India and abroad were further being probed.

The information culled out during the narcoanalysis test on him was being investigated. he said.

Based on the information revealed by Rehman, a case of hatching conspiracy and waging war against the government of India, spreading communal violence by use of explosives and firearms had been registered against him, Singh said.

He said "a few persons" from Karnataka had also gone to Pakistan and Bangladesh for training.

The explosives seized from Habib were gelatine sticks. Some other "incriminating documents" had also been seized, he said.

On the shootout at the IISc, which claimed the life of Delhi IIT professor M C Puri and left four others wounded, Singh said, "So far, we have not been able to identify who pulled the trigger (of AK-56 weapon)."