Study in Swedan:Time required to issue visa:

You will normally receive a response within two weeks, but processing times can vary at missions abroad. If you need current information about this, contact the Swedish mission abroad which will process your application. If the Swedish mission sends your application on to the Migration Board, the process may take longer. To be sure that you receive your visa in time, you should submit your application at least two months before you are due to travel to Sweden. During the June-August holiday period, the processing time could be longer.