There was generous use of the saffron colour in the decor and brochures of Petrotech 2016 in Delhi. The summit, in its 12th year, introduced a new term for the expected growth in India’s energy sector. In line with India’s white and green revolutions in the past, the organisers said the country was on the threshold of a “saffron revolution”. Saffron is the colour of energy, they said. The ruling party at the Centre, the Bharatiya Janata Party also uses the colour saffron in all party- related symbolism.