BENGALURU: To promote handloom and Khadi products as part of its Azadi Ka Amrit Mahotsav, the Bangalore Metro Rail Corporation Limited will permit over 60 artisans to sell their products at the Bengaluru Santhe space at its Swami Vivekananda Metro station free of cost. The ‘Khadi exhibition with artisans’ will run for a week from August 15 to 21.