 He also had held simultaneous charge as Deputy Inspector General of Police (Battalions) overseeing all Police Battalions in Kerala, as well as official-in-charge of the Kerala Railway Police while holding the position of DIG (Intelligence).Immediately prior to this, Vijayan headed the police organization of Thiruvananthapuram, the capital city of the state, as its Police Commissioner.Commencing his policing career as Assistant Police Superintendent (Kanhangad) in Kasaragod District in October 2001, Vijayan has been District Police Chief of several districts including Kasaragod, Thiruvananthapuram Rural, Malappuram, Ernakulam Rural and holds the unique distinction of being the first to have served as Commissioner of Police in all four Commissionerates in the state, viz.