The star formation encompasses a multitude of diverse processes, such as from the onset of cloud collapse, fragmentation, and accretion, to the manifestation of disk and outflows, is thus at the nexus of much of the contemporary astrophysics. In this talk, I will discuss star formation in a few specific cases, focussing on young open clusters, hub-filament systems, and infrared dark clouds, which are located in the galactic disk. I will shed light on how multiple stellar populations can coexist along the same line-of-sight and if that indicates any sustained star formation activity spanning upto tens of Myr in a young open cluster. With observational evidences, I will represent the kinematic interplay between filaments, and the role of filamentary flows in feeding and forming the hubs and henceforth to massive stars. Also in an infrared dark cloud, with high resolution data, I will show the dynamical evolution of a clump and its fragmentation to cores with multiple pre- and proto-stellar systems. Finally, I will share a brief overview of my upcoming projects at IIA.