Article History
Received: 19 September 2018
Accepted: 20 September 2019
First Online: 24 October 2019
Ethics approval and consent to participate
: The particular study is based on the secondary source of data which is freely available in public domain (Source of data:- ExternalRef removed and ExternalRef removed) and hence authors does not require any ethical clearance. The ethical clearance was taken by the authorities who have initiated and conducted the whole survey throughout the India. All the information is available in survey report. Local ethics committee ruled that no formal ethics approval was required in this particular case.
: Not applicable.
: The authors declare that they have no competing interests.