Leaders of the National Socialist Council of Nagalim (Isak-Muivah), Isak Chishi Swu and Thuingaleng Muivah, are likely to hold talks with Prime Minister Manmohan Singh on December 7 in a bid to take the peace process in Nagaland further.

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.

They had visited India last year after a gap of over three decades and held talks with then prime minister Atal Bihari Vajpayee and his deputy Lal Kishenchand Advani.

After a week's stay in New Delhi, Swu and Muivah will visit Nagaland and meet NSCN cadres there.

Thereafter they will come back to Delhi to carry on the dialogue with the Centre's interlocutor on the Naga peace process, K Padmanabhaiah, and other top officials, the sources said.