  It is plausible that most of the Stars in the Milky Way (MW) Galaxy, like the
Sun, consist of planetary systems, instead of a single planet. Out of the
estimately discovered 3,950 planet-hosting stars, about 860 of them are known
to be multiplanetary systems (as of March, 2023). Gravitational microlensing,
which is the magnification in the light of a source star, due to a single or
several lenses, has proven to be one of the most useful Astrophysical phenomena
with many applications. Until now, many extrasolar planets (exoplanets) have
been discovered through binary microlensing, where the lens system consists of
a star with one planet. In this paper, we discuss and explore the detection of
multi-planetary systems that host two exoplanets via microlensing. This is done
through the analysis and modeling of possible triple lens configurations (one
star and two planets) of a microlensing event. Furthermore, we examine
different magnifications and caustic areas of the second planet, by comparing
the magnification maps of triple and binary models in different settings. We
also discuss the possibility of detecting the corresponding light curves of
such planetary systems with the future implementation of the Nancy Grace Roman
(Roman) Space Telescope and its Galactic Time Domain survey.
