The main and only cast Lavitra Satam didn't want to act but did so because he was a dear friend of the director and it was the same for Shlok Khune the assistant on the set.
The paper which Apu threw in the air and the paper in which he was writing was not of their production, the film was so low budget that when they didn't get the budget to buy a book, they borrowed it from a boy who was going to tuition, and they are still thankful to that boy for his help.
There was too much wind while shooting so the matchsticks eventually ended so they decided to tear the paper and throw it on the air.