The Rajendra Lingden-led Rastriya Prajatantra Party (RPP) and the Kamal Thapa’s Rastriya Prajatantra Party-Nepal (RPP-Nepal) have agreed to reunify, closing yet another chapter in the two royalist parties’ decades-long history of breakaways and mergers.

Mohan Shrestha, RPP spokesperson, said that Lingden and Thapa signed a brief agreement at the party office in Dhumbarahi on Wednesday.

The deal paves the way for a formal unity declaration on December 31 at the Bhrikutimandap-based City Hall. Lingden, announcing the development, urged nationalist forces to consolidate their strength at what he described as a decisive political moment.

The unification comes after months of overtures from both sides. The parties—both advocating the restoration of Nepal as a Hindu state and the monarchy—had intensified efforts to come together ahead of the March 5 House of Representatives election.

Thapa had walked out of the RPP in 2021 after losing the party chairmanship to Lingden, securing 1,617 votes against Lingden’s 1,844. He at the time had accused former king Gyanendra Shah of meddling in the party’s election and subsequently revived the RPP-Nepal.

He later contested the 2022 polls from Hetauda under the CPN-UML’s election symbol but was defeated by RPP’s Deepak Bahadur Singh.

Despite years of rivalry and intermittent tensions within the RPP itself, leaders from both sides now argue that the political moment demands unity.

The two parties had already collaborated in several pro-monarchy protests earlier this year, signalling growing convergence.

With technical matters reportedly resolved, the formal reunification marks the latest turn in the RPP’s long cycle of divisions and reunions.