Complex sentence: Maharadhi served as Andhra Pradesh Congress state secretary under chief minister Y. S. Rajasekhara Reddy wherein he was instrumental in promoting YSR in the east and west Godavari districts in his early days.
Split into simpler sentences: Maharadhi served as Andhra Pradesh Congress State Secretary under the Chief Minister Y. S. Rajasekhara Reddy. In this position, he was instrumental in promoting YSR in the east and west Godavari districts in his early days.