One March morning, when Coimbatore resident Raju Gopukumar returned home after his walk with packets of neatly packed and labelled vegetables, his wife R Radhika was surprised. He had never bothered to buy vegetables until told to. The packets, with a “Leaf” stamp, contained vegetables such as beetroot, carrot and zucchini. Radhika was impressed because the vegetables were clean and of uniform size.