Pakistan-based Lashkar-e-Taiba was planning bomb attacks on the HITEC City, a major IT township here, and the office of a multinational auditing firm.

Mohammad Zia Ul Haq, who was arrested yesterday following a tip off by the National Investigation Agency, was directed by his LeT handlers to bomb the Hyderabad office of Deloitte Touche Tohmatsu, one of the four largest auditors in the world, and was in the process of carrying out the plan, government sources said.

Interestingly, Haq works as a driver for a taxi service hired by Deloitte Touche Tohmatsu.

Besides, Haq had been tasked to carry out terror attack at the Hyderabad Information Technology Engineering Consultancy City (HITEC City), spread over 151 acres and at the centre of the information technology industry in Hyderabad.

He has already procured the explosives supplied by the LeT to carry out the attack, sources said.

Haq first came in contact with LeT when he went to Saudi Arabia in 1995. In 2002, following the Gujarat riots, he went to Pakistan and took terror training in Karachi and Pakistan Occupied Kashmir capital Muzafarabad.

He got training in handling explosives and fire arms including AK 47 and was assigned to cause explosions in crowded areas.

Though he soon returned to India, he was keeping low and was working with various travel companies as taxi driver in Hyderabad.

Haq had allegedly carried out the bombing at Odeon cinema in Hyderabad in 2006 through explosives supplied by LeT through an operative from Jammu and Kashmir.

"We are trying to find out whether he was assisted by any other LeT operative in his acts or was operating alone," a source said.