Alter had acted in a number of Bengali films.
"It is too shocking for me to hear this though I know he was in critical condition for the past few days," said film director Sandip Roy, the son of maestro Satyajit Ray.
"Memories keep flooding about the days of shooting of my father's Shatranj ki Khilari. Tom used to be extremely polite to all unit members and was a great human being. I am at a loss for words.
Director Goutam Ghosh said, "Tom Altar was a very articulate, brilliant and stylish actor who was eqaully conversant in Hindi, Urdu and English. I had the oppurtunity to meet him some time ago and what struck me was his positive appraoch. He had very close ties with Bengal and I shared warm relations with him.
"Alter's death is a sad news on Bijoya Dashami day," he added.