CPN-UML senior leader Madhav Kumar Nepal assured that the new constitution will be promulgated by May 29, the Republic Day, that too through consensus among major political parties.
The former Prime Minister said the Constituent Assembly (CA) will begin its process to endorse the statute once major parties strike a deal on key constitutional disputes.
He, however, blamed UCPN-Maoist and Madhes-based parties for hindering the constitution writing process.
Nepal was speaking at a press meet organised by Press Chautari, Jajarkot in the district headquarters Khalanga on Wednesday morning.
Though ruling parties have adopted a maximum flexibility to bring a consensual constitution, they will not compromise on sovereignty, national integrity and autonomy, he said.
The UML leader also asked opposition parties to suspend protest programmes and concentrate on constitution drafting.
Meanwhile, Nepal inaugurated the eights District Council meeting on Tuesday.