Prime Minister Narendra Modi has expressed grief on the demise of noted writer and journalist Arun Sadhu. <br/><br/>In a tweet, Mr Modi extended his deepest condolences to his family and admirers.<br/><br/>Mr Sadhu passed away in Mumbai early today at a hospital following heart ailment. He was 76. <br/><br/>The former editor of Free Press Journal, Sadhu has written many books in Marathi, Hindi as well as in English. He is better known for his novel in Marathi Simhasan and Mumbai Dinank. <br/><br/>Sadhu worked with several newspapers including the Statesman. He was also awarded by Sahitya Akademi.