Chandok, who was diagnosed with acute lymphoblastic leukaemia (ALL) in April, last year, was able to attend classes in the Heritage School for only about two months.
"My cousin who also studies in the same class supplied all notes to me," the 16-year-old boy told PTI.
"He was in hospital for one-and-a-half months at a stretch. And then he had to go for about seven days each month to the hospital for chemotherapy which weakened his immune system but not the spirit to fight," his proud father Manoj Chandak said.
The family was stunned when Raghav was diagnosed with cancer. "We thought he will not be able to appear for the exams. We went to the school and told them about it. They said, you take care of the medical condition and we will take care of his studies," the father said.
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A special bench was laid out in the classroom for him whenever he went to attend any lecture as there was a fear of infection spreading on to other students.
A football fan, he dreams of getting into the IITs after finishing school.