The results of both the polls will be declared on May 23, 2019.
Presiding over a coordination meeting of the party at a hotel in Guwahati on Tuesday, Sangma appreciated the NPP candidates for putting up a strong electoral fight.
He directed Arunachal Pradesh NPP president Gicho Kabak to reorganise the party heads in the state and district units immediately and assured of full support and cooperation for strengthening the NPP in Arunachal Pradesh.
Manipur’s deputy chief minister Joykumar Singh, Meghalaya home minister James Sangma, Gicho and all the NPP candidates, who contested the April 11 election, participated in the meeting.
They included MLAs Kumar Waii, Mutchu Mithi, Tirong Aboh, Nikh Kamin, Tapuk Taku and Paknga Bage.
Gicho predicted the probable number of winning candidates and suggested the selection of the legislature party leader after election result with due consultation with the elected MLAs and the national president.
The candidates underlined the difficulties they faced during the election campaign in their respective Assembly constituencies and sought the strengthening of the party organisation in the state.
The Manipur deputy CM, who is also the vice-president of NPP, advised the candidates not to leave the party after the election result and strengthen the party organisation in the state.
The NPP put up a candidate for the Arunachal West parliamentary constituency and 30 candidates for the Assembly election in Arunachal Pradesh.
The NPP is an ally of the BJP through the North East Democratic Alliance and National Democratic Alliance.