New Delhi, Dec. 15 :    New Delhi, Dec. 15:  Textile units want the government to reduce excise duty while widening the scope of Cenvat to cover segments that do not come within its present ambit. The industry claims that the proposed model will lead to an additional revenue generation of Rs 881 crore for the exchequer. Called an alternate excise model for the textile industry, the recommendations are based on a study done by Crisil Advisory Services. The study was commissioned by the Indian Cotton Mills' Federation (ICMF). ICMF chairman Rajaram Jaipuria said the present excise model has a duty structure which has broken links in Cenvat and duty exemptions to various segments in the industry. In cotton fibre, where the existing excise duty is nil, the proposed excise duty is 2 per cent. For cotton yarn, which has an existing excise duty of 8 per cent, the proposed excise duty is 4 per cent.