There would be some overlapping in the syllabi of Governance & Public Policy and Political Science:

e.g. 'II. Governance Theories; VIII. Multi-level Governance in Pakistan; IX. Federalism etc. will have similar subject content as Political Science.

Similarly, 2 Topics within Public Administration may overlap with Political Science, i.e. IX.Organization of Provincial and Local Government; X. Governance and Administrative Reforms.

I think if the consideration is 'overlapping', Governance would be a better choice.