The Outreach Programme, the second edition of which is scheduled to be held tomorrow, is the brainchild of the BJP-led NDA government.
The Centre aims to strengthen the bond between Kolosib district of Mizoram and Cachar and Hailakandi districts of Assam.
The deputy commissioner of Kolosib district of Mizoram, Jitender Yadav, however, did not spell out the reasons of this decision.
A senior official of the Hailakandi district administration, however, said they are at present busy in the onerous job of updating the National Register of Citizens (NRC).
He added that in view of the deteriorating law and order situation in the district at present, it would be wise to postpone the celebrations.
The last Outreach Programme held at a higher secondary school in Dholai township of Cachar district in April evoked tremendous enthusiasm among people of the two countries.
Mizo women, in their traditional hand-woven tribal attire, added to the celebration mood.
Some dance items like bamboo dances of the Mizos and the dhamail dance by the rural women of Cachar districts, interspersed by the songs, stole the show in this inter-state exhibition of mutual affinity between people of these states.
Apart from these, some common sports events like volleyball, football and kabadi were the other stellar features of this inter-state festival in Dholai.
In the recent past, the two state administrations had to mutually tackle the spurts of the acrimony between the Mizos and the local inhabitants.