Province No. 1
Province No . 1 ( proposed names: Koshi/Purbanchal ) is the easternmost of the seven provinces established by the new constitution of Nepal which was adopted on 20 September 2015 . 
<triplet> Province No. 1 <subj> Nepal <obj> country <subj> 20 September 2015 <obj> inception <triplet> Koshi <subj> Nepal <obj> country <triplet> provinces <subj> Nepal <obj> country <triplet> Nepal <subj> Province No. 1 <obj> contains administrative territorial entity