When is National Immunization Day celebrated every year in India?

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E6 Ghai Essential Pediatrics(pp 26-904 of 913) p. 189-191
E6 Comprehensive Textbook of Community Health Nursing for BSc Nursing Students Part 2 — Subpart A (pp 1-275 of 550) p. 70-72
Practise the full MP CHO -2021 (Shift 1st)
Attempt every question from this paper in a timed mock, then review the full solution for each one.