  Our study focuses on analysing the coronal, transition and chromospheric
activity of four rapidly rotating stars located within 50 pc in the solar
neighbourhood. We have used the multi-wavelength capabilities of AstroSat, to
investigate the outer atmospheres of AB Dor, BO Mic, DG CVn and GJ 3331. These
stars, classified as M and K type active stars, are known for their short
rotation periods, leading to increased surface magnetic activity. Our soft
X-ray observations provide the coronal properties such as emission measures,
temperatures and elemental coronal abundances. We report the detection of X-ray
flares from AB Dor, BO Mic, and DG CVn, while UV light curves reveal flares in
both BO Mic and DG CVn.
