Does anyone know where to find the movie "Thinking of him"?

Hi, I’m helping a friend who is trying to find the Argentine film Thinking of Him (2018), the movie about Rabindranath Tagore and Victoria Ocampo. She lives in India and needs it for her postgraduate dissertation, but we haven’t been able to find it on any streaming platform or in physical format here. If anyone has a copy, knows where it’s available, or can suggest any legitimate way to access it in India, we would be truly grateful.

Thank you.