Six persons were reportedly involved in the December 13 Parliament security breach - Sagar, Manoranjan, Amol, Neelam, Lalit and Vishal.
While four were nabbed immediately after the incident, the fifth accused Vishal was caught later and the search is on for Lalit.
According to police, Vishal Sharma earlier worked as a driver in an export company but of late he drove an autorickshaw. His neighbours claimed that he was a drunkard and often quarrelled with his wife.
On the other hand, Lalit is the one who made the video of Amol and Neelam releasing smoke from canisters outside the Parliament premises and uploaded on Instagram.
A police source said, "No mobile phones have been found on the accused and the police are looking for their phones." A resident of Haryana's Jind, Neelam, who is in her late 30s, told police that she was studying for competitive exams. Neelam has done MA, B.Ed, M.Ed, CTET, M.Phil and cleared NET.