Complex sentence: Doddakoppalu Kariyappa Ravikumar (commonly known as D. K. Ravi; 10 June 1979--16 March 2015) was an Indian civil servant and an Indian Administrative Service officer of Karnataka cadre, from the 2009 batch.
Split into simpler sentences: Doddakoppalu Kariyappa Ravikumar (commonly known as D. K. Ravi; 10 June 1979--16 March 2015) was an Indian civil servant. He was an Indian Administrative Service officer of Karnataka cadre, from the 2009 batch.