AGNs, or Active Galactic Nuclei, are extremely energetic and compact regions at the center of galaxies. They are powered by accretion of material onto a supermassive black hole, which releases a large amount of energy in the form of radiation. AGNs are some of the most luminous objects in the universe and play a key role in galaxy evolution. Research in this area aims to understand the physical processes driving the activity in AGNs, their impact on their host galaxies, and their role in the cosmic energy budget. astronomers use a variety of observational techniques, such as imaging, spectroscopy, and monitoring of AGNs across different wavelengths, to study their properties and behavior.