The demand for mobile handsets in the country has grown by 20 per cent to 180 million in 2011 as compared to 150 million for 2010. This information was given by the Minister of State for Communications and Information Technology Milind Deora in Rajya Sabha today in a written reply. Quoting the Indian Cellular Association's estimates, the Minister said the demand will reach upto 200 million Mobile handsets the current year.