About the Authors

Prashant Kumar Singh

prashant_iips@yahoo.co.in

Affiliation International Institute for Population Sciences, Mumbai, Maharashtra, India

Rajesh Kumar Rai

Affiliation Tata Institute of Social Sciences, Mumbai, Maharashtra, India

Lucky Singh

Affiliation International Institute for Population Sciences, Mumbai, Maharashtra, India

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PKS. Performed the experiments: PKS RKR LS. Analyzed the data: PKS RKR LS. Contributed reagents/materials/analysis tools: PKS RKR LS. Wrote the paper: PKS RKR LS.