Rebuffing the demand by rich nations to take increased responsibility in the Doha trade talks, India today said it cannot open its markets beyond its obligation without reciprocal gains.<br/><br/>India's chief negotiator at the World Trade Organisation D K Mittal said in New Delhi that no market access above the level of what is there can be given for free. Doha round of talks, launched in 2001 under the aegis of WTO, have missed several deadlines in the past due to differences between developed and developing countries over issues like agricultural subsidies and market access. <br/><br/>Mr. Mittal, an additional secretary in the Commerce Ministry, said the Indian economy has gained the status of an advance developing nation more because of its domestic consumption as its exports are only 18 per cent of its GDP. <br/><br/>Advance countries, particularly the US, have been arguing that emerging economies like India, China and Brazil should be treated as advance developing countries and be asked to take bigger responsibilities in terms of market opening for reaching a global trade deal.