A few years back, during the annual Durga Puja, a festival organising club (Samaj Sebi Sangha) in south Kolkata had created a tactile experience in their marquee for the visually impaired. They created an installation of the face of the goddess with nearly 12,000 screws so that people could feel the texture and shape better - to make the goddess &lsquovisible&rsquo to the visually impaired. Structures on the walls used criss-crossing threads on nails to form patterns and phrases in Braille.