Mooshahary, who was also the Director General of Border Security Force (BSF), is contesting as a Trinamool Congress candidate in his debut in politics.
His main challenger is a militant turned politician Chandan Brahma of Bodoland Peoples' Front (BPF).
Brahma is currently the Transport minister in the Assam Government.
The BPF is the offshoot of erstwhile Bodo Liberation Tigers (BLT) which was disbanded in 2003 following a tripartite agreement between the Union government, state government and the militant group.
Another militant-turned politician in the fray is Naba Kumar Sarania, a former Ulfa militant, who is better known by his alias Heera Sarania.
This is not all. The independent candidate Urkhao Gwra Brahma, though has no direct militant past, has been backed by National Democratic Front of Boroland-Progressive (NDFB-P), which is presently in ceasefire with the government.
Interestingly, in this constituency which has a history of riots and militancy, both the super cop and ex-militants are promising peace.
In 2012, over 100 people were killed in a communal clash between Bengali speaking Muslims and Bodos. Two communities had also clashed in 1953, 1993 and 1994.
There were also series of clashes between Bodos and Adivasis in the area between 1996 and 1998.
“There is no peace in Kokrajhar. Development has taken a back seat. If elected, I promise to address the issue of good governance and safety and security of the people," Mooshahary told a rally in Kokrajhar at the end of the campaign.