Administrative data deficiencies plague understanding of the magnitude of rape-related crimes in Indian women and girls

BACKGROUND: This paper investigates trends in rape-related crimes against women and girls reported in the Indian administrative data from 2001 to 2018 to assess the burden of crime, describe sub-national variations, and highlight data gaps to address sexual violence effectively in India. METHODS: Data on five rape-related crimes were extracted from the annual reports of National Crimes Record Bureau (NCRB), and included assault with the intent to outrage modesty of woman, rape, insult to the modesty of women, attempt to commit rape, and murder with rape/gang-rape. Rates for all categories combined, and for each crime were estimated for women and girls for India and its states. Trends for type of offender for rape, mean number of people arrested, and legal status of the cases was also assessed. RESULTS: The rate of all rape-related crime increased from 11.6 in 2001 to 19.8 in 2018 per 100,000 women and girls. Most of the 70.7% increase in rate between 2001 and 2018 was post 2012 following a gang-rape and murder case in India’s capital. The largest proportion of crimes was recorded as assault with the intent to outrage modesty of the woman, followed by rape. The cited offender in rape cases was for the majority a close known person (44·3%) or other known person (43·1%). By the end of 2018, only 9·6% of the cases had completed trials, with acquittals in 73% cases. CONCLUSIONS: The wide variations in the yearly crime rates at state-level highlighted significant issues in data quality including under-reporting, non-comparability, possible bias in data reporting in NCRB, definition of rape-related crime in India, and access in reporting of crimes. Addressing barriers to reporting, improving quality and scope of administrative data recorded on sexual violence is urgently needed for India to meet SDG targets of eliminating all forms of violence against women and girls. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12889-022-13182-0.