Embedding is disabled at youtube, but you can watch it there. Here's a clip from the beginning to whet your appetite:
TimeOut says, "it manages to mount a lucid, finally very moving argument against the destructive nature of fanaticism and superstition... Without a doubt, it is impressive film making". The Guardian gives it 4 out of 5 stars and says it "boasts all the strengths of a consistent career" and "is a fine example of Ray's work and well worth seeing". Rotten Tomatoes has a critics score of 100%.
I have seen these others by Satyajit Ray:
Charulata, or The Lonely Wife (1964)
Mahanagar (The Big City) (1963)
The Apu Trilogy: