Elder Sister Syndrome refers to the emotional and psychological burden often carried by the eldest daughters in Indian families, where they are expected to act as junior parents, role models, and emotional anchors from a young age. Rooted in collectivistic and patriarchal norms, this syndrome emerges when girls are assigned responsibilities beyond their age — managing siblings, mediating conflicts, and maintaining family harmony. Over time, these expectations shape their identity, creating patterns of over-responsibility, people‑pleasing, and hyper‑independence. While these traits appear as strengths, they often mask chronic stress, suppressed needs, and difficulty setting boundaries. As adults, such women may struggle with guilt when prioritizing themselves, feeling compelled to care for others even at personal cost. Elder Sister Syndrome is not a diagnosis but a culturally shaped experience that highlights the emotional labor placed disproportionately on eldest daughters.