Generally an academic year will consist of 150 teaching days excluding the day taken by admission and annual examination .A theory paper of 100 marks will be generally carry 1650 lectures and 5 periods a week and a paper of 50 marks 75 lectures and 3 periods in a week .A practical course requires the student to attend more period per week as mentioned in course of study .In semester system 48 hours credit hours class days are allocated for 3 credit hours.