The centre's pollution control board has ordered states to be in "complete readiness" for emergency measures to tackle Delhi's worsening smog conditions; Union Home Minister Amit Shah will go to Uttar Pradesh for a two-day visit to hold strategy meetings regarding the coming elections; Retail inflation rose 4.48 per cent in October from 4.35 per cent in September, mainly due to higher fuel and edible oil prices, government data showed; and other top stories.