2. Indian Revenue Service (IRS): Indian Revenue Service requires professionals to deal with matters regarding Income Tax. In the beginning of their career, professionals opting for this field of work are designated as the Assistant Commissioners of Income Tax, but later they may get promoted to the level of Chief Commissioners of Income Tax. This position also requires applicants to clear UPSC’s civil service examination. However, the best part of this job is that you can expect better locations for posting. Moreover, there is lesser political hassle as compared to the IAS officer’s post.