//Created by Yogalakshmi on 23.07.2013
 /// <summary>
 /// Gets the studentmark by student mark id.
 /// </summary>
 /// <param name="studentMarkId">The student mark id.</param>
 /// <returnsStudentMark></returns>
 public StudentMark GetStudentMarkByRollNumber(int rollNumber)
 {
     return(studentDataService.GetStudentMarkByRollNumber(rollNumber));
 }