Yes. Since his works are still under copyright (until ~2048), downloading a full PDF from an unauthorized source is copyright infringement. It is similar to pirating a movie.

The search for "Baburao Arnalkar Books PDF Free Download" highlights the enduring legacy of a man often called the "King of Marathi Pulp Fiction." Baburao Arnalkar was a prolific writer whose work defined the detective genre in Maharashtra for decades, and the modern digital search for his books reflects a deep-seated nostalgia and a desire to preserve a unique era of Indian literature. The Phenomenon of Baburao Arnalkar

The demand for "PDF Free Downloads" of Arnalkar's work stems from several factors: Preservation