Muivah flew from New Delhi and landed at Dimapur airport, where he was given a brief civic reception by local officials.
There should not be any condition to re-conciliation among the Naga groups and the Nagas must strive for political settlement with the Centre based on their unique history and situation, Nationalist Socialist Council of Nagaland(Isak-Muivah) general secretary Thuingaleng Muivah has said.
Following the week-long standoff between the Nagas and the Manipur government over Thuingaleng Muivah's visit to his native village, the Congress core committee decided not to allow the separatist leader to enter the state. After prolonged deliberations, the party top-brass on Wednesday felt that the visit of the country's top rebel leader from the National Socialist Council of Nagaland-IM might worsen the law and order situation in Manipur.
General secretary of Naga rebel group Nationalist Socialist Council of Nagalim (Isak-Muivah), Thuingaleng Muivah left Nagaland for New Delhi on Thursday to participate in the next round of peace talks with the centre after staying over two months in the troubled North Eastern hill state.
The Asian Human Rights Commission called on Prime Minister Dr Manmohan Singh on Monday to intervene in diffusing the escalating tension, especially in Nagaland-Manipur boundary areas in Mao.
The new interlocutor, AK Mishra, held talks with NSCN-IM chief negotiator Thuingaleng Muivah at Dimapur in Nagaland.
The two sides agreed to meet again later in March, possibly in the last week of the month.
The ULFA chairman also criticised the government of Assam and the government in New Delhi for overlooking Nagaland's bid to encroach upon Assam territory.
The next round of formal peace talks between the National Socialist Council of Nagaland (Issac-Muivah) General Secretary Thuingaleng Muivah and the centre's interlocutor Mr R S Pandey is expected to take place on Wednesday amidst reports that both sides have been able to iron out many ticklish issues which were pending for last several years.
The 68th round of peace talks between the Centre and the National Socialist Council of Nagaland-Isak Muivah leadership, by all indications, are heading for a deadlock, as the both sides are rigid on the issues of sovereignty.
Swu and Muivah, who are scheduled to reach New Delhi on Sunday night from Amsterdam, are expected to meet Home Minister Shivraj Patil on Monday, official sources said.
The Union home ministry has ordered stepping up the security of Thuingaleng Muivah, secretary general of the Nationalist Socialist Council of Nagalim, following death threats from his rival group NSCN (Khaplang).
The National Socialist Council of Nagaland-Isak Muivah is aiming to carry forward the ongoing Naga peace process.
Naga students have the National Socialist Council of Nagaland - Isak-Muivah leader a rousing welcome.
The NSCN-IM delegation, led by senior leader V S Atem, met interlocutor A K Mishra at an undisclosed location in the national capital.
Swu and Muivah, who were scheduled to leave India on January 20, have extended their stay by at least four days in view of the 'positive progress' in the Naga peace talks.
The union government and Naga insurgent group NSCN-IM continued talks for the second day on Wednesday when its demand for sovereignty for Nagaland and its territorial claims over portions of neighbouring states was categorically rejected.
'People's expectations were very high.' 'We felt both sides had understood each other.' 'But the removal of Article 370 triggered apprehensions within the Naga people.'
Naga rebel leader Thuingaleng Muivah, who signed the pact with the Indian government, says the framework agreement will lead to a new relationship
"This time, we want something concrete from the government on our demands. Otherwise it is futile to meet only for the extension of the ceasefire," NSCN-IM spokesman Tongmeth Wangnao Konyak told PTI on phone.
One of the senior most leaders of the Congress party and former chief minister of Nagaland, S C Jamir on Thursday called for a change in approach on part of the Government of India in respect of Naga peace talks.
'The fact that NSCN leaders are here in India for talks is a very positive development,' says Mizoram Chief Minister Zoramthanga.
They were last here about a year ago.
In a letter to Prime Minister Narendra Modi written on February 25, but kept secret so far, Thuingaleng Muivah, the general secretary of the group and chief Naga negotiator in the talks with the government, also spoke about the framework agreement (FA) signed in 2015 and its proposal that the state should be allowed to have a Constitution and national flag.
Naga rebel groups remain divided over the pact. Moreover, secrecy on accord creates apprehension in the society. K Anurag reports