The Child Sex Ratio is defined as the number of females per 1000 males in the age group 0–6 years. In the census 2001 the child sex ratio of India was 927 which declined to 919 in the census 2011. As per the census 2011, Arunachal Pradesh has the highest child sex ratio among the Indian states i.e. 972 while Haryana has the lowest child sex ratio i.e.834 per thousand males.
Among the Union Territories of India; Andaman and Nicobar Islands has the highest child sex ratio i.e.968 per thousand males.
Child Sex Ratio of all Indian states is given below;
| State/UTs | Child Sex Ratio (0-6) | |
|
| Census-2001 | Census-2011 |
| INDIA | 927 | 919 |
| 1. Jammu & Kashmir | 941 | 862 |
| 2. Himachal Pradesh | 896 | 909 |
| 3. Punjab | 798 | 846 |
| 4. Chandigarh | 845 | 880 |
| 5. Uttarakhand | 908 | 890 |
| 6. Haryana | 819 | 834 |
| 7. NCT of Delhi | 868 | 871 |
| 8. Rajasthan | 909 | 888 |
| 9. Uttar Pradesh | 916 | 902 |
| 10. Bihar | 942 | 935 |
| 11. Sikkim | 963 | 957 |
| 12. Arunachal Pradesh | 964 | 972 |
| 13. Nagaland | 964 | 943 |
| 14. Manipur | 957 | 936 |
| 15. Mizoram | 964 | 970 |
| 16. Tripura | 966 | 957 |
| 17. Meghalaya | 973 | 970 |
| 18. Assam | 965 | 962 |
| 19. West Bengal | 960 | 956 |
| 20. Jharkhand | 965 | 948 |
| 21. Odisha | 953 | 941 |
| 22. Chhattisgarh | 975 | 969 |
| 23. Madhya Pradesh | 932 | 918 |
| 24. Gujarat | 883 | 890 |
| 25. Daman & Diu | 926 | 904 |
| 26. Dadra & Nagar Haveli | 979 | 926 |
| 27. Maharashtra | 913 | 894 |
| 28. Andhra Pradesh | 961 | 939 |
| 29. Karnataka | 946 | 948 |
| 30. Goa | 938 | 942 |
| 31. Lakshadweep | 959 | 911 |
| 32. Kerala | 960 | 964 |
| 33. Tamil Nadu | 942 | 943 |
| 34. Puducherry | 967 | 967 |
| 35. A. & N. Islands | 957 | 968 |
Source: Census-2011
From the above table it can be concluded that the child sex ratio in India has decreased between 2001 to 2011. There are so many reasons behind the reduction in the child sex ratio in India. One of the main reasons behind this menace is the preference of the society for the male child instead of a girl. Some other reasons include; sons will look after parents in old age, exorbitant dowry demand, men are the bread earners and son can perform the last rites and look after the parents etc.