Funding for this research was provided by:
Department of Biotechnology , Ministry of Science and Technology (BT/PRI14378/MED/30/535/2010)
Received: 5 February 2022
Accepted: 24 February 2022
First Online: 10 March 2022
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The study was approved by the institutional ethical committee, Department of Anthropology, University of Delhi, Delhi 110007, India, approval number: Ref. No. Anth/2010/455/1. Prior to data collection, permission was sought from all the local authorities and informed written consent, transcribed in the local language, was obtained from each participant before recruitment.
: Not applicable.
: The authors declare that they have no competing interests.