Nepal's disgruntled Rastriya Janata Party-Nepal, a key Madhesi party, has decided to boycott the third phase of the local level elections to be held next month.
RJP-N leader Manish Kumar Suman said the party would not participate in the elections, scheduled to be held on September 18, till the constitution amendment bill is passed.
The party has also decided to launch fresh protest to disrupt the polls.
"We have decided to announce stir to disrupt the third phase of local level elections if the government did not address our demands in a week," said Suman.
He said the party would withdraw its support to the government, if the government did not fulfil demands put forth by the party.
The announcement comes days after Federal Socialist Forum Nepal's Chairman Upendra Yadav said RJP-N will participate in third phase of the local level elections.
Some Madhes-centric parties have opposed the elections until the Constitution is amended to accommodate their demands like more representation in parliament and redrawing of provincial boundaries.
Madhesis, mostly of Indian-origin, launched a prolonged agitation between September 2015 and February last year against the implementation of the new Constitution.
The party has urged the government to implement the three-point agreement signed with the RJP-N in the past.
In his political document, RJP-N Coordinator Mahantha Thakur said the provincial boundaries should be revised along the lines of the report submitted by the erstwhile State Restructuring Commission.