Yumsem Matey was a politician from Lazu Village, (OLLO Community) Tirap Dist.
He was a member of the Arunachal Pradesh Assembly from Khonsa West constituency in Tirap district.
First Graduate from OLLO Community (BA.Hons.in History), in the year 1992–93, from Government College, Itanagar, Arunachal Pradesh.
Elected as MLA from 56th Khonsa West Assembly Constituency, in the year 2009 from Indian National Congress, to the post of Parliamentary Secretary; of Department of Women and Social Welfare, Social Justice and Tribal Affairs, and DOTCL (Department of Tirap, Changlang and Longding).
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