Some of the worst of the recent violence was in not Assam but Nagaland.
"In Assam, Meghalaya, Manipur, Mizoram and Nagaland, poverty in 2009-10 has increased, " the commission said in a statement.
BBC: 'Sharp drop' in India poverty due to welfare programmes
Since 1997, a ceasefire has largely held in the Indian state of Nagaland.
They have promised not to disrupt state elections to be held in February in Nagaland (and two other north-eastern states).
Locals here in Assam and the neighboring states of Manipur and Nagaland add fresh chopped chilies to the pot when cooking curries.
They have met the prime minister, Atal Behari Vajpayee, and other bigwigs, as well as delegations of their own people from Nagaland.
Polls for the Nagaland assembly are due on 23 February and strict checking is being carried out to prevent any irregularities by candidates.
Road links were cut off by supporters of Thuingaleng Muivah, a rebel leader from Nagaland who has been denied entry to Manipur by the state government.
Indian leaders and officials have held sporadic peace talks with Mr Swu and Thuingaleng Muivah, the other eponymous leader of the Nationalist Socialist Council of Nagaland (Isak-Muivah).
Mr Imchen - a candidate of Nagaland People's Front (NPF) party - was initially detained on Monday morning while he was travelling to his constituency, Koridanga, from the state capital, Kohima.
At Mrs Gandhi's re-coronation, a Congress leader from the north-eastern state of Nagaland warned her against a coterie that many Congressmen believe isolates her from the real stalwarts of the party, and called for changes in the party's structure.
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