The AAG submitted his resignation to Chief Minister Jagadish Shettar.
"There is no particular reason for my resignation. It is just a cordial goodbye to the post," he told PTI.
Nataraj, a senior advocate, was appointed as Additional Advocate General on July 28, 2009. He was also legal advisor for various firms, including Bangalore Development Authority.
After securing his degree in law from SDM Law College, Mangalore in 1992, he started his career as an advocate at the Judicial Magistrate First Class court in Mangalore.
The post of AAG had fallen vacant after the earlier incumbent Ashok Harnahalli was promoted as Advocate General.