Answer:
Swami felt very bad as his conscience disturbed him greatly.
Step-by-step explanation:
A perjurer is someone who tells les even though he claims to be saying the truth, especially in court.
Swami felt bad. His conscience disturbed him because he had lied and exaggerated the reaction of his teacher, Samuel, to his father, to avoid going to school.
Swami thought that by painting his teacher as a violent man who beats up students who come late to class, his father would allow him to stay back at home and not go to school.
His father surprised him however by writing a long letter complaining to the headmaster against Swami's teacher Samuel.
Swami was saddled with the responsibility of delivering the letter to his headmaster and felt very bad doing so.