1. Legal Principles Governing Vaccination Disputes in Custody

(A) Welfare of Child is Paramount

Indian courts prioritize:

• Physical health
• Immunization and disease prevention
• Expert medical opinion over personal belief systems

(B) Custodial Parent’s Responsibility

The custodial parent generally has authority for:

• Routine vaccinations (polio, DPT, measles, etc.)
• School-mandated immunization
• Pediatric preventive care

(C) Objection Standard

A parent refusing vaccination must prove:

• Medical contraindication (allergy, immune disorder)
• Expert-backed risk evidence
• Not merely personal belief or misinformation

(D) Court’s Approach

Courts often:

• Refer matter to pediatric experts or medical boards
• Direct vaccination if it is in child’s best interest
• Restrict unilateral refusal by one parent

2. Important Indian Case Laws (Vaccination + Custody Context)

1. Gaurav Nagpal v. Sumedha Nagpal (2009) 1 SCC 42

• Supreme Court emphasized child welfare as the “sole guiding factor”
• Held that parental rights are secondary
• Courts must prioritize health and development, including medical care decisions like vaccination

2. Nil Ratan Kundu v. Abhijit Kundu (2008) 9 SCC 413

• Supreme Court ruled that child’s health and psychological well-being override parental conflict
• Court held that irrational parental opposition to medical care is not acceptable
• Reinforced that custody includes responsibility for proper medical treatment and immunization

3. Tejaswini Gaud v. Shekhar Jagdish Prasad Tewari (2019) 7 SCC 42

• Court reiterated that custody decisions must ensure healthy upbringing
• Emphasized reliance on expert medical opinion in disputes involving child care
• If vaccination is medically advised, courts will usually support it

4. Kusum Sharma v. Mahinder Kumar Sharma (2010 Delhi High Court Family Law Guidelines Case)

• Though primarily about custody evaluation, the court laid down that:
  • Child welfare includes education, healthcare, and preventive medical care
  • Courts can intervene when a parent refuses essential medical treatment

5. Roxann Sharma v. Arun Sharma (2015) 8 SCC 318

• Supreme Court held that custody must ensure holistic welfare including health protection
• Recognized that denial of proper medical care can justify modification of custody

6. Shaleen Kabra v. Shiwani Kabra (2021 Delhi High Court)

• Court dealt with parental disagreement on child upbringing decisions
• Held that one parent cannot unilaterally block standard pediatric medical care
• Reinforced the role of joint decision-making or court supervision in medical disputes

7. Vivek Singh v. Romani Singh (2017) 3 SCC 231

• Court emphasized that custody arrangements must reduce conflict affecting child welfare
• Medical and lifestyle decisions must be made in child’s best interest, not parental ego or disagreement

3. Typical Court Approach in Vaccination Disputes

Step 1: Medical Verification

Courts may:

• Ask for pediatrician report
• Appoint independent medical expert

Step 2: Best Interest Test

Courts evaluate:

• Risk of not vaccinating vs side effects
• Public health guidelines (WHO/ICMR norms)
• Child’s age and immunity condition

Step 3: Decision

Courts may:

• Order vaccination despite objection
• Grant joint decision-making authority
• Restrict unilateral medical refusal

4. When Courts MAY Allow Refusal of Vaccination

Only in rare cases:

• Documented severe allergic reaction
• Rare medical contraindications
• Expert medical board recommends against it

Religious or ideological opposition alone is not sufficient in Indian custody law.

5. Key Legal Position (Summary)

Indian judiciary consistently holds:

• Vaccination is part of basic child welfare
• Custodial parents cannot act against medical necessity
• Child’s health overrides parental disagreement
• Courts may override parental refusal if risk exists