"Every government has made some effort. At times there have been improvement, at times obstacles. This cycle continued. Everybody has contributed to this process.
"The credit does not go to any particular government, nor should it be taken. Everyone contributed to doing good. It is the result (of these efforts) that today in Nagaland there has been a successful dialogue with those people (NSCN(I-M) leaders). The result is that now we have had successful talks with those people in Nagaland," he said.
He said everybody has seen the dream of development and joining the mainstream in not only Nagaland, but the entire northeast and the country.
"I am confident that the journey that has begun of walking together will bear best of results and the country will achieve greater heights," he said in an obvious reference to the Naga accord.
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He said if the issue of connectivity is resolved then development would not be a problem. He said efforts were on to provide railway connectivity to state capitals in the region.
Referring to pineapples grown in the region and chillies in Nagaland, he said the northeast can become the "organic capital" of the country.
The development of the region was vital for the country's growth, he said.
The function was also attended by Home Minister Rajnath Singh, Finance Minister Arun Jaitley, Nagaland Governor P B Acharya and Chief Ministers of Nagaland and Manipur T R Zeliang and O Ibobi Singh respectively.