A customer also knows that if the product has an ISI mark then it follows a set standard for quality and safety. The durability of the product also increases if the product is an ISI mark. It is also a fact that the price of the ISI mark product is a little bit on a higher side because to maintain the quality standard raw material and other components also used of high quality. The products that are having ISI registration mark their registration number on the product. it is compulsory for the manufacturer. The surveillance team of BIS can take a random sample from the market to test the product. That is why manufacturers produce goods of a set quality and customers believe in ISI mark products.