UNC, the Centre and the BJP-led Manipur government had held the tripartite talk in Senapati on Sunday.
"The government of Manipur agrees to start consultation with all stakeholders to address the issues", said the statement, adding that the state government had agreed to release the UNC leaders arrested last December, including its president G Kamei.
This followed an agreement reached during talks involving the Naga group and representatives of the central and Manipur governments.
Fighting the issue of the economic blockade was one of the primary agenda of Bhartiya Janta Party (BJP) assembly election campaign in Manipur.
The proposed Kanpokpi district formation was in response to a longstanding Kuki tribal demand for a Sadar Hills district.
The BJP government in Manipur led by Chief Minister N. Biren Singh achieved its first major success within days after coming to power.
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Biren Singh earlier chaired a meeting of ministers and ruling coalition MLAs to take stock of the situation arising out of the economic blockade imposed from November 1 against the government move to create two new districts.
December 23, 2016: Home Minister Rajnath Singh asks Nagaland Chief Minister T.R. Zeliang to ensure that there is no disturbance in movement of vehicles passing through the state following reports of NSF's blockade.
The agreements were signed by Dr J Suresh Babu, Additional Chief Secretary/ Home, Government of Manipur S Milan, General Secretary, United Naga Council, K Radhakumar, Commissioner/Works, Government of Manipur, Seth Shatshand, President All Naga Students' Association Manipur, LM Tabitha, President, Naga Women's Union and Satyendra Garg, Jt Secy, NE MHA.
The tripartite talks were held initially on February 7 in Imphal for ending the blockade on two national highways - NH 2 and NH 37.
Sources from the UNC said that the talks will be held on Sunday, March 19, at Senapati district headquarters from 1 pm.
"There will be a scene of the most unwanted violence in case the new BJP Government initiates any measure or decision to rollback the newly created Kangpokpi district", warned a prominent leader from Kangpokpi.