Question

why was the speaker asked to go and sit in the
back bench.​

Answer 1

Explanation:

Kalam's teacher did so because he got jealous when he saw a Muslim boy sitting with a Hindu boy. So he asked him to go and sit at the last bench.

Answer 2

Answer:

In accordance with their social ranking as he saw it, he asked Kalam to go and sit on the back bench. This was a heart-breaking experience for Kalam. This poison of social inequality and communal intolerance could have demoralized the young Kalam if his friend's father, Lakshmana Sastry had not intervened.