Extradited gangster Abu Salem [Images] gave a wealth of information on underworld activities and even revealed details of incidents that happened 15 years ago during a narco-analysis test in Bangalore Friday, sources in the Forensic Science Laboratory and Anti-Terrorist Squad, Mumbai, said.

Salem was "unstoppable" during the three-hour test conducted at the Bowring Institute in Bangalore and has "given all the information that police wanted", the sources said.

• Abu Salem extradited

The gangster, in sub-conscious state, also elaborated on the statement he made before the Mumbai police in which he disclosed the names of certain persons who were part of his financial chain of collection and distribution of money.

"The results will give a new direction to our investigation," a top Anti Terrorist Squad official said.

Salem had a long list of questions to answer. He was subjected to polygraph (lie-detector) and brain-mapping tests at the FSL in the last two days.

An FSL official said the report on the scientific tests would be ready Saturday.

Salem was brought to Bangalore from Mumbai for undergoing the series of scientific tests, in connection with the murder case involving builder Pradeep Jain.

A Terrorist and Disruptive Activities court in Mumbai, hearing the 1993 bomb blast case, last week allowed ATS Mumbai to subject Salem to undergo the tests in connection with the murder case.