The number of females has increased over the past ten years in Tripura with sex ratio standing at 960 against per thousand males, according to final census report-2011.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/sex-ratio-reduced-tripura-female-literacy-shows-upward-trend
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/shillong-times-shillong
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tripura
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/family-planning
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/census-2011
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/population