Waves of Nightingales, my man!
That is the literal meaning of Bulbul Tarang, which is the name if this instrument. Also known as the Indian Banjo, it is a common folk instrument from India.
The Bulbul Tarang has two sets of strings, one for melody and one for drones. The melody strings are all tuned in unison. They are fretted by keys and played with a plectrum.
This massive sampleset has multiple-velocity samples with round-robin alternates, along with note-off samples, and separate samples for the drone strings.
It has a custom Kontakt script which reproduces the monophonic response of the real instrument where lifting a key can cause the note to continue to ring at the root note produced by the open strings, with a selectable root-note.
The interface also allows you to choose a polyphonic mode, and the tuning of the drone strings.