The previous research shows that there are so many factors like students' personal characteristics, learning habits, previous academic background, family background, college environment etc. which influence directly or indirectly the students' performance in their university examination. In this paper a questionnaire has been designed and developed on the basis of number of various influencing factors which were identified by studying the previous work carried out by different researchers in different geographical areas and boundaries of the world and also included some other relevant factors which were explored by taking the opinions of the students and teaching faculties. Overall 75 factors were shortlisted from the previous research and factors suggested by the students and faculties in consultation with the experts. A preliminary survey was conducted to know the importance of these factors in pass/fail of students in university examination. Descriptive analysis, independent t-test and one way ANOVA techniques were used for analysis purposes. Finally 22 influencing factors were identified as important influencing factors by analyzing the results of statistical methods and discussions with experts. These identified factors were further used to design and develop a questionnaire to correlate the performance of engineering students in their university examination.