A chorus of car horns, jammed roads and ever rising fuel prices - These problems have become a daily routine for most urban commuters in India. And along with road congestion, city dwellers also have to deal with clouds of smoke from various emissions making our air toxic and difficult to breathe in. To address these problems, India's start-up space is stepping up to the challenge, trying to fix traffic, parking problems and air pollution through creative technology. Some of them are even using pollution to print t-shirts and paint walls, on this episode of Heads Up, meet these innovators and hear their stories.