During 1971-1972, Rajashekar served as a Parish Priest ofthe Ambur Synod of the IELC. In 1974, Rajashekar began to teach at the GurukulLutheran Theological College, Chennai in which the IELC is a participatingChurch Society. After a two-year teaching stint at the Seminary, he proceededon doctoral studies to the United States only to return in 1981 and joined theUnited Theological College, Bangalore where he taught for nearly four yearsuntil 1984 when he moved to Geneva to take up an assignment with the Lutheran WorldFederation.
From 1984 through 1991, Rajashekar was on the staff of theLutheran World Federation based at Geneva, Switzerland and made a significantcontribution as Executive Secretary for Dialogue with People of other Faithsand Ideologies.
In 1991, Rajashekar became a member of faculty of theLutheran Theological Seminary at Philadelphia where he rose to the position ofAcademic Dean in 2000 and continues to be Luther D. Reed Professor inSystematic Theology.