Aim: Informal caregivers of cancer patients have extensive burdens. They are susceptible for deterioration of their quality of life (QOL). We aimed to assess caregiver burden and QOL of family caregivers of cancer patients receiving chemotherapy admitted in the ward/intensive care unit/high-dependency unit. Materials and Methods: This prospective observational study including 178 caregivers was carried out in a tertiary care hospital. The assessment of caregiving burden was done using the Zarit Burden Interview and its impact on QOL using the WHO BREF QOL questionnaire. Results: The mean age and mean Zarit Burden score of caregivers were 38.98 ± 10.53 and 30.697 ± 8.96, respectively. Of the total, 70.22% of caregivers reported mild-to-moderate burden and 21.38% reported moderate-to-severe burden. On assessment of QOL WHO BREF, the mean general score was 5.79 ± 1.84, physical health score was 49.65 ± 16.07, psychological health 51.85 ± 20.43, social relations 59.38 ± 21.43, and environmental 58.73 ± 17.51. The QOL scores were slightly better in mild-to-moderate burden compared to moderate-to-severe burden but not statistically significant except for social relations (P = 0.053). We did not find any difference in burden scores or QOL between male and female caregivers. Conclusion: Mild-to-moderate burden was seen in 70.22% of caregivers and 21.38% had moderate-to-severe burden.