Vaccination coverage in India has improved from 44% to 62%, an increase of 19% over a span of 10 y (2006-2016), the inequity continues among the vulnerable people belonging to tribal groups and migrant population. In order to leave no one behind strategy, their vaccination coverage, reasons for low coverage were analyzed from available literary sources through this review article. A systematic search for relevant articles was conducted and articles published in various journals over the past 5 y were included. The vaccine coverage among the vulnerable population ranged from 31% to 89% from various studies. It was found that parents' education status, income of the family and lack of awareness of the schedule were the most important reasons for vaccine hesitancy. Introduction of cash assistance integrated into other national program, digitalizing vaccination cards, involvement of local healers are few strategies suggested in this article.
Keywords: NFHS; Vaccination; migrants; rural India; tribal; under five.