Before you apply for BIS ISI Certification, keep your papers ready. You need your business proof, factory address proof, and a list of your machines. You also need the test report of your product and the details of your lab. A trained person must be present to check quality in your factory. Your product must match the Indian Standard fully. If not, the test will fail. After getting the ISI Mark Certification, you must print the ISI mark and license number on your product. You must also send monthly or yearly reports to BIS. If you break any rule, BIS can stop your license. So always follow the rules and keep your records safe. ISI Certification is not only a paper, it is a promise of good quality to your customers.