**Author details**

Ajit Kumar Yadav1 \* and Akansha Singh<sup>2</sup>

1 International Institute for Population Sciences (IIPS), Mumbai, India

2 Department of Anthropology, Durham University, UK

\*Address all correspondence to: ajitkumaryadav1989@gmail.com

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
