New Delhi: Sugar industry body ISMA on Wednesday demanded that the government should come out with a long term policy and formula for ethanol pricing in order to encourage mills to expand capacity by around 400 crore litre which will require an estimated investment of Rs 17,500 crore. Briefing media about the demand-supply scenario of sugar for the 2023-24 marketing year starting next month, Indian Sugar Mills Association (ISMA) President Aditya Jhunjhunwala also demanded that the minimum selling price of sugar should be enhanced to Rs 38 per kg from the current Rs 31 per kg in view of an increase in production cost.