How to make anonymous complaint to fssai

In my area, there is a super market - they buy expired products from big retail gaints such Reliance, BigBasket and they are reselling without the expiry date or they are repacking the expired product. They have every expiry products from biscuits, wheat, dal, chips, cool drinks, fresh juices, popcorns, rice and more. I know it is illegal in India, but they are operating 24x7 with 2 shops and 3 godowns. They are spoiling environment by burning actual labels, throwing out expired juices in road, and so on. Can someone help me to anonmoysely complaint to the fssai anonymous \*\*Locations of expired product selling shops\*\* 1. MKR TRADERS(location: 5583+398, Sai Sakthi Nagar Rd, Pothur, Tamil Nadu 600062) 2. Shagulhmreed R 5573+JF, Pothur, Chennai, Tamil Nadu 600062