The five states which have worst child sex ratio (CSR) - Daman and Diu (618 girls per 1,000 boys), Dadra and Nagar Haveli (775), Chandigarh (818), Delhi (866) and Andaman and Nicobar Islands (878) - have also not punished anyone during the period.
The Pre-Conception and Pre-Natal Diagnostic Techniques (PCPNDT) Act, 1994 was enacted to stop female foeticide and arrest the declining sex ratio by banning pre-natal sex determination.
According to data available with the Health Ministry, only 32 people have been punished in the whole country as against 563 cases reported for conducting sex determination tests between 2011 and 2013.
The data shows that only four states convicted 13 people in 2013. In 2012, eight persons were punished by three states and in 2011, 11 people by four states.
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Haryana with 879 CSR registered 54 cases under the Act but no conviction took place. Similarly, Delhi registered 10 cases but could not manage to punish anyone.
The phenomenon has spread to areas which were not known for disparity in CSR including tribal areas and eastern states, said a Women and Child Development Ministry official.
The trend was particularly acute in more developed areas of the country including metropolitan cities.
Non-implementation of the Act has been the biggest failing of the campaign against sex selection, the official said.