Text and Data Mining valid from 2019-01-12
First Online: 12 January 2019
Compliance with Ethical Standards
: The study used the data set that is available online in public domain; hence, there was no need to seek ethical consent to publish this study.
: The authors declare that they have no conflict of interest.
: This paper is based on anonymized survey data collected by the National Sample Survey organisation (NSSO), a department of the Ministry of Statistics and Programme Implementation, Government of India. Data is available in the public domain. The data is already available in publicly available repositories to individuals both at the national and international level through ExternalRef removed.