Bengaluru: Veteran Sandalwood actor Shani Mahadevappa (Shiva Prakash) died after a prolonged illness at the K.C. General Hospital here yesterday. He was 88. He leaves behind his wife, a daughter and a son. Mahadevappa, who acted in almost all movies of Kannada matinee idol Dr. Rajkumar, had appeared in more than 400 films. Mahadevappa’s son…