Although no accord is likely to be reached, the talks with the Indian leadership are expected to boost the efforts to bring peace to Nagaland, the sources said.
Isak Chishi Swu and T Muivah will represent the Naga outfit; the government side is likely to include Oscar Fernandes, Prithviraj Chauhan and S Reghupaty.
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 Centre's interlocutor for the Naga peace process, K Padmanabhaiah, is holding talks with National Socialist Council of Nagalim (I-M) in Bangkok for the second time since the Manmohan Singh government took over.
"We had very good but tough discussions. Both sides have agreed to extend the ceasefire by another year," Centre's emissary K Padmanabhaiah told PTI after three days of talks with NSCN (I-M) General Secretary T Muivah.
The government will make this clear before reaching any agreement with the outfit, Padmanabhaiah said.
The Wire has reported that phone numbers of multiple people close to Dubai Princess Sheikha Latifa, who was captured by Indian soldiers in 2018, were added to a list of potential targets for surveillance.
Both the NSCN-IM and the government representatives have agreed to resume their peace dialogue on Wednesday in New Delhi to find a permanent solution to the vexed issue.
Security forces in Nagaland and Arunachal Pradesh have mounted vigil in areas where the Nationalist Socialist Council of Nagalim (Khaplang) led by Burmese-origin Naga S S Khaplang has strong influence.
Isak Swu and T Muivah had a one-hour meeting with the former prime minister at his residence.
The NSCN-IM, which resumed talks to find a solution to the decades-old Naga political issue after a gap of almost two years, said in a statement on Friday that the problem is "deeply rooted in India's malicious pleasure, violating the historical and political rights of the Naga people".
The Goa chief minister said, "The surgical strikes against militants in PoK was planned 15 months in advance."
One soldier of Assam Rifles was injured in the operation and his condition is stated to be stable, they said. The encounter took place in the jungle between Nginu and Ngissa villages of Longding, officials in Arunachal Pradesh said.
'NSCN-IM leader Muivah warns that the NSCN-IM has come very close to an honourable solution to the peace process with the Government of India, but if it does not materialise, then the Nagas will go away so far that it would be difficult to bring them back to the negotiating table easily,' note Sandeep Pandey and Meera Sanghamitra.
Former West Bengal governor Jagdeep Dhankhar's subsequent elevation set a new benchmark for the actions of those who occupy Raj Bhavans, observes Aditi Phadnis.
Naga splinter groups impatient with stalled talks as well as rebel Manipuri groups who have a stake in disrupting upcoming elections to the state assembly, are believed to be regrouping in the borderlands of China's Yunnan province and Myanmar, taking advantage of the turmoil in the latter by using it as a transit corridor.
'If the NSCN-IM is cold shoulderd, the chances are that it will slip back into insurgency,' caution Sandeep Pandey, Meera Sanghamitra and Babloo Loitongbam.
For the most battle-hardened, specialised and successful counter-insurgency army in the world, this is an unfamiliar, first-time experience of dealing with the north east's deepest complexities, observes Shekhar Gupta.
Naga rebel groups remain divided over the pact. Moreover, secrecy on accord creates apprehension in the society. K Anurag reports
By writing a scathing letter to Chief Minister Neiphiu Rio on the breakdown in law and order in the state, is Governor R N Ravi creating the ground for consolidating his power and directly influence proceedings in the state, asks Sandeep Pandey.
Assembly elections in Himachal Pradesh and Gujarat are over. Another set of state elections is due in 2018. Here's an assessment of the next round of the electoral challenge and how it could change India's political equations.
It is the NSCN-IM which is having the last laugh as speculation grows that Nagaland Governor R N Ravi may have been replaced as Naga interlocutor.
Rediff.com gives you a lowdown on the NSCN-K.
To expect that these past decades of grief, inter-group killings, anxiety and fear will be brushed aside because of the Naga peace accord is being unrealistic. Memories are built on old wounds and they heal slowly. So, it is important to be cautiously optimistic, says Sanjoy Hazarika.
The ongoing vicious game between Delhi and the so-called 'separatist' militias has severely blighted the Nagas' life and gutted their dignity, says Ravindra Narayan Ravi
'The issue of the larger homeland of Nagalim, the dream of the Nagas to hold sway over swathes of Manipur, Assam and Arunachal Pradesh, is just that, a dream.' 'The NSCN has been told categorically that the government is not going to concede on this issue.'
Fencing the border between Myanmar and Nagaland is expected to adversely affect the Naga tribals. Gautam Sen, an expert on Nagaland, explains why the Indian government needs a more comprehensive and long-term perspective on this issue and why it must take local tribal sensitivities and customs into account.