Coal India, the country’s largest coal producer, re-entered the list of top-50 most valued companies in terms of market captialisation in the country on the back of a strong rally. The stock hit a fresh 52-week high at Rs 195.20, on ralling 12 per cent on the BSE in Wednesday’s intra-day trade on back of heavy volumes. In past three weeks, the stock has zoomed 31 per cent on improved business outlook.