Imphal district
In 1997 , it was split into Imphal East district with its seat in the city of Porompat , and Imphal West district , whose seat is Lamphelpat . 
<triplet> Porompat <subj> Imphal East district <obj> located in the administrative territorial entity <triplet> Lamphelpat <subj> Imphal West district <obj> located in the administrative territorial entity