New Delhi, Feb 23 (ANI): The Delhi Police on Monday said it was under the impression that energy consultant Lokesh, who has been arrested in connection with the espionage case, was active in two or three ministries and sold the procured official papers to other firms also. Earlier in the day, few others were also detained in the espionage case. Lokesh was working with a Noida-based energy consultant firm 'Infraline'. Meanwhile, Lokesh has been sent to five-day police custody. With this, the number of people arrested in this corporate espionage case has reached 13.