New Delhi, March 4 (IANS): The Delhi Police Wednesday said they were looking for three employees of different private firms in its ongoing probe into the leak of government documents from the coal, power and petroleum ministries.

"Two employees of energy consultant firms-- Infraline Energy and Sigma-- and one from Sahara Group are on police radar," Joint Commissioner of Police (Crime Branch), Ravindra Yadav told IANS.

The hunt is on for Shashi Garg, the managing director of Infraline Energy, and Ravi, a senior employee of Sigma, along with Goldy, an employee of the Sahara Group.

Officials said that the role of these three men came to light during the questioning of Jitender Nagpal, personal secretary to a joint secretary in the forest and environment ministry, and Lokesh Sharma.

Nagpal was arrested on February 25 while Sharma, who used to provide stolen documents of the coal and petroleum ministries to some corporate houses, was arrested on February 23.

Shashi Garg, who took over the reins of Noida-based energy consultancy firm Infraline Energy after the death of her husband Yogesh Garg, is evading the probe.

So far, 16 people have been arrested and Delhi Police have registered two FIRs - the first one on February 17 and the second on February 20 - in connection with the leak of classified documents.

The case came to light on the night of February 17 with the arrest of two former multi-tasking staff (MTS) employees of Shastri Bhavan.