SITRA CERTIFICATION I DRDE CERTIFICATION SERVICES IN NOIDA SECTOR 137 The PPE garment manufacturer will either print in indelible ink , or stick a tamper -proof sticker , on the body of the garment on the inside of the PPE with the following particular's 1. Name of the manufacturers 2. SITRA / DRDE CODE 3. Test standard 4. Date of Manufacturing 5. Order HLL life care Ltd , if the material is supplied to HLL life care . This is not mandatory of retail orders.