I have analyzed the region AR12437 where C2.1 class flare occurred in the South-West area
of the Sun observed on October 26, 2015. From the morphological studies, flare eruption shows the
Three ribbon structure. This region was least complex with the complexity α. Filament was associated
with this flare. Besides the circular ribbon, an inner and an outer (remote) ribbons are often found. I
have analyze the event with SDO/AIA and HMI data for the evolutionary studies. This study is also
characterized with the X-ray emission to study the energy release processes. I have also used ARIES
Hα data and velocity Dopplergrams for the Photospheric study of the region AR11748 for the Intensity-
velocity relations.