Breast cancer (BC) is the most common type of cancer globally and in India. In India, BC is more common among younger women compared with Western counterparts. Younger women with BC tend to have a less favorable outcome as they are more likely to have aggressive tumors. Younger women are not well represented in BC management studies as the median age at diagnosis is in the late 50s to early 60s. This can lead to difficulty in using risk-stratification models and molecular tools among young BC patients and may result in overtreatment. Therefore, Indian Society of Medical and Pediatric Oncology gathers and organizes available evidence from published literature to create a guide specifically for young BC patients in low- and middle-income countries like India.