Amitabh also mentioned that it was a "privilege" for him to work with one of the greatest auteurs of twentieth century cinema.
The 73-year-old had lent his baritone voice for the narration of Ray's "Shatranj Ke Khiladi" in 1977.
The award-winning filmmaker's first film "Pather Panchali", won eleven international prizes, including the inaugural Best Human Document award at the 1956 Cannes Film Festival.
Ray did the scripting, casting, scoring, and editing, and designed his own credit titles and publicity material. He received many major awards in his career, including 32 Indian National Film Awards, a number of awards at international film festivals and award ceremonies, and an Academy Honorary Award in 1992.
He was also honoured with the Bharat Ratna in 1992.
In 1992, Ray's health deteriorated due to heart complications. He was admitted to a hospital, but never recovered. The Academy of Motion Picture Arts and Sciences awarded him an Honorary Academy Award. Ray is the first and the only Indian, yet, to receive the honour.
Twenty four days before his death, Ray accepted the award in a gravely ill condition, calling it the "Best achievement of movie-making career." He died at the age of 71.
On the work front, Amitabh has finished shooting for filmmaker Shoojit Sircar's thriller "Pink". (IANS)