1. World Population Prospects. The 2004 revision and world urbanization prospects: the 2004 revision. Population Division of the Department of Economic and Social Affairs of the United Nations Secretariat. Available from: https://esa.un.org/unpp/. [Accessed 09 Oct 2019].
2. Progress for children: a report card on adolescents. Socio-demographic profile of adolescents: number 10 April 2012 UNICEF. Figure: 2.1 Page 6. accessed on 23.09.2019. https://www.unicef.org/publications/files/Progress_for_Children_No._10_EN_04232012.pdf.last.
3. Sivagurunathan, C, Umadevi, R, Rama, R, Gopalakrishnan, S. Adolescent health: present status and its related programmes in India. Are we in the right direction?. J Clin Diagn Res 2015 Mar;9:LE01–6. https://doi.org/10.7860/JCDR/2015/11199.5649.
4. Bhalwar, R. General principles and practice of healthy lifestyle. WHO –AFMC text book of public health and community medicine. Pune: Department of Community Medicine, AFMC; 2009. pp. 1183–95.
5. World Health Organization, Regional Office for South-East Asia. Core indicators 2005 health situation in South-East Asia and Western Pacific regions. New Delhi; 2005. Available from: https://www.who.int/searo/healthsituation/ [Accessed 21 Sep 2019].