Saikrishna Jagali, a senior software engineer, has been taken into custody in relation to the Parliament security breach on December 13.
Jagali, from Vidyagiri, Karnataka, and the son of a retired Deputy Superintendent of Police, was arrested by Delhi police following the detention of Manoranjan D, his former college roommate.
The incident, involving the unauthorized detonation of smoke cannisters in Parliament, prompts questions about motivations and connections behind the attack.