Input tax credit availability on health insurance arises when employer coverage became effective during the mandatory disaster directive period.
Health insurance procured by an employer in response to mandatory Disaster Management directions qualifies for Input Tax Credit if the insurance policy was issued to and became effective for the employer during the mandatory period; entitlement depends on receipt of the service on its effective date and, when legitimately availed at that time, the credit applies for the full tax charged on the policy term, whereas policies becoming effective after the mandatory period do not meet the obligation based proviso. (AI Summary)

Vouchers as PPIs are treated as money so issuance is not taxed; GST arises on redemption when goods or services are supplied.
Vouchers that take the form of Prepaid Payment Instruments (PPIs) are treated as money under GST, so issuance and loading are not taxable; redemption of PPIs to procure goods or services is taxable in the hands of the supplier/merchant. Intermediary services (payment aggregators/marketplaces) are separately taxable on commissions or fees. Valuation may follow Rule 32(6) (voucher value equals monetary value redeemable) or transaction value under Section 15, and time of supply is issuance if the underlying supply is identifiable, otherwise redemption. (AI Summary)