Someone else’s original compossition/s.
The typical indic classical or art music performance involves tradional composition
Part A (sthaii)
Part B (antraa)
for the slow section
and medium tempo section.
depending on genre there may also (esp. in vocal)
also be Part C (sanchari)
Part D (abhog)
the fast tempo will have
another Part A
Part B
A dessert piece in the same raga
which is a DHUN (folk melody)
with Part A and Part B.
If you can’t discern these easily in a piece it may because some virtuoisi (which is what you get a lot in the West and in recordings available in the West) like to indulge in
tirobhav.