This thesis is set to determine the impact of Public Procurement Act in the execution of capital projects, the relationship between budgetary appropriation and actual funding, also the relationship between saving benefits and total capital expenditure. To identify the challenges and prospect. Tools of data collection used were structured closed and open -ended questionnaires as well as interviews for the respondents who had been involved in the process including survey of related literature on public procurement. In the course of testing the three hypotheses, we applied chi-square, t-test and correlation. Chi-square was used to test the impact of public procurement in the execution of capital projects and Pearson's correlation coefficient technique was applied to test the relationship between budgetary appropriation and actual funding in the implementation of PPA. Similarly we used t-test to test for the significant of a difference between the contract sum and amount certified. 

The result of the findings reveals that PPA had made significant impact on the execution of capital projects in Ahmadu Bello University, Zaria. While it was also revealed that there is no significant relationship between budgetary appropriation and actual funding, therefore, there is weak relationship between the variables, T-test was employed to evaluate the significant difference between contract sum and amount certified and the study reveals that there is significant difference between contract sum and amount certified. 

The study showed that PPA being a new initiative had made a significant impact in the university system which has helped in saving public funds by corrupt practices that usually characterized Public procurement. The study recommended that University management should shorten bureaucracies in the approval process, timeliness of procurement certification, speedy passage of annual Budget, prompt payment of completed contract, enforcement of appropriate rules and attitudinal change.