"Murder of Kannada researcher Prof Kalburgi has shaken me to the core. I will return the cash prize and citation to the Akademi once I reach Delhi on September 8," Prakash told PTI over phone from his native village Sitapur in Anuppur district of MP.
Prakash was awarded the Sahitya Akademi award in 2010 for his stories collection 'Mohan Das'.
"Authors, artists and rationalists of our country are regularly being attacked. On one side we boast of freedom of expression by giving shelter to writers like Taslima Nasreen but on the other same things are happening here now," Prakash said.
"I have not taken this decision under the influence of any political party but as a mark of protest against the attacks on authors and artists," Prakash said.
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Since the authors do not have any security they have become easy targets, Prakash added.
Former Vice-Chancellor of Hampi University, M M Kalburgi, who won the Sahitya Akademi award for his collection of research articles in 2006, was shot at his residence in Karnataka by unidentified assailants on August 30.
77-year old Kalburgi was rushed to the civil hospital where he died without responding to treatment.
Part of his works on 'Vachana'(verses) literature had also come under criticism of the state's majority 'veerashaiva' (Lingayat) community.
Kalburgi had raised the hackles of some right-wing outfits like VHP and Bajrang Dal when he had made certain remarks about idol worship by Hindus that were considered "derogatory" and "blasphemous" by them.