1. Post graduate student Department of Community Medicine, Maharishi MarkandeshswarInstitute of Medical Sciences and Rsearch, Mullana, Ambala, Haryana, India
2. Professor and head department ofCommunity Medicine, Maharishi MarkandeshswarInstitute of Medical Sciences and Research, Mullana, Ambala, Haryana, India
3. Associate professor, Department of Community Medicine, Maharishi MarkandeshswarInstitute of Medical Sciences and Research, Mullana, Ambala, Haryana, India
4. Professor and head ,Department of Community Medicine, Shri Atal Bihari Vajpayee Government Medical College, Faridabad, Haryana, India
5. Associate professor,, Department of Mathematics,Mukund Lal National College, Yamuna Nagar, Haryana, India