A Nagpur couple, Akshay Holey and Divya Lohakare Holey, has turned a 400-square-foot room into a saffron cultivation unit using aeroponic technology. By growing the expensive spice without soil, they have built a business generating annual revenue of Rs 40-50 lakh. Their saffron sells for around Rs 6.3 lakh per kg. After investing Rs 55 lakh, the couple targets to achieve Rs 1.3 crore earnings over in 5 years." name="description">window.