"The agitation launched by the Madhesis and other ethnic groups was not necessary at this time," Oli told PTI on the sidelines of a grand International Buddhist conference here.
"The government believes in resolving the issue related with the Madhesis and the ethnic groups through talks," he said.
The new Constitution has already been promulgated and if they have any grievances, the government has called them for talks in the past, he added.
The minority had led a nearly six-month-long violent protest over better representation in the Parliament and the federal structure of the Constitution that divides their ancestral homeland.
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The agitation that began last year also witnessed blockade of key border trade points with India and claimed over 50 lives before being called off unexpectedly just before Oli's maiden visit to India but the impasse is far from over.
The agitating Madhesi Front has rejected the government's earlier call for talks and asked the ruling coalition to create a "conducive atmosphere" for dialogue to end the political crisis plaguing the country as it went ahead with the first phase of protests, in a bid to bring the waning Madhesi movement back to the limelight, which ended yesterday.
A few hundred people assembled in a protest rally organised by the alliance in Mangalbazaar of Lalitpur district near Kathmandu. However, the programme was largely peaceful.
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Meanwhile, three fringe parties distance themselves from the Alliance of 29 parties. The three parties including Bahujan Samajvadi Party and Loktantrik Dal have accused the leaders of the United Democratic Madhesi Front, the main grouping of the alliance, of ignoring their agendas and bargaining with the government based on their own 11-point demands.
He, however, pointed out that necessary legal and institutional frameworks have already been put in place for initiating reconstruction works.
Oli also sought help and support from the international community including neighbours in the government's efforts of rebuilding the country in the aftermath of the devastating earthquakes.
"As the transitional phase has almost culminated with the promulgation of the constitution last year, now our focus will be on economic prosperity and development," Oli said.
"My recent visit to India and China were also focused towards that end," he said adding that "we need the support from international community in our efforts of rebuilding the nation and attaining economic prosperity".