The film was shot at the Palais Rothschild in Boulogne.
The script for India Song was based on an unproduced play which Marguerite Duras finished in July 1972. The play had been commissioned for the Royal National Theatre by Peter Hall. Duras had only visited India briefly in her teens, but chose to not watch any photographs from Calcutta while she worked on India Song, preferring to imagine it all.
The film cost 254,542 francs to produce, of which 250,000 came from the CNC. Dominique Sanda was the first choice for the leading role, but dropped out and was replaced by Seyrig. Finding the main location took several months; eventually Duras chose the Palais Rothschild in Boulogne, which she had seen during a walk and which had impressed her. The Rothschild family had abandoned the building after World War II and it had started to dilapidate. Other scenes were shot at the Grand Trianon in Versailles, and in two Paris apartments which were about to be demolished. Filming started May 13, 1974 and lasted two months. The voices were pre-recorded.
India Song was shown as part of the 1975 New York Film Festival, and was shown out of competition at the 1975 Cannes Film Festival. It was released in France on June 4, 1975.
Vincent Canby, writing for The New York Times, reviewed the film in a negative light, finding that it was aesthetically pleasing but shallow. Canby described India Song as "no content and all style", although he felt that Seyrig's portrayal of Anne-Marie was "marvelous to contemplate". Clarke Fountain, reviewing the film for Allrovi, rated it four out of five stars. Michel Lonsdale, who portrays the Anne-Marie's husband, the French Vice-Consul, considers his part to be his "most favorite role", adding that "it helped me exorcise the suffering I was going through at the time in my personal life".
India Song was nominated for three César Awards in 1976—Best Music Written for a Film for Carlos d'Alessio, Best Sound for Michel Vionnet, and Best Actress for Delphine Seyrig. However, the film did not win in any of the nominated categories. It was France's submission for Best Foreign Language Film at the 48th Academy Awards, but did not receive a nomination.
Source : Wikipedia