There will be three University (sol.du.ac.in) Examinations, one at the end of each Academic Year, viz. Part I at the end of the First Year, Part II at the end of the Second Year and Part III at the end of the Third Year for all Undergraduate Courses. Now you can download your Delhi School of Open learning Date Sheet 2011 from it's official website at http://sol.du.ac.in/ or check below links.
sol.du.ac.in Date Sheet 2011 of B.Com/B.A
http://sol.du.ac.in/News/DateSheet.aspx
sol.du.ac.in Date Sheet 2011 of B.Com/B.A
http://sol.du.ac.in/News/DateSheet.aspx