You are a VIP if you have ESI card. ESI Card can be used anywhere in India. If you or your family member is not well you can take treatment in ESIC Dispensary. Even if you join other company by showing your ESI card you can continue getting benefits of ESI card. Showing your ESI card to new employer is must. You must bring your ESI card to ESI hospital whenever you visit. If you dont have ESI card, go to nearest ESI office and get your ESI Card.