  In this work, we have studied the collaboration and citation network between
Indian Institutes from publications in American Physical Society(APS) journals
between 1970-2013. We investigate the role of geographic proximity on the
network structure and find that it is the characteristics of the Institution,
rather than the geographic distance, that plays a dominant role in
collaboration networks. We find that Institutions with better federal funding
dominate the network topology and play a crucial role in overall research
output. We find that the citation flow across different categories of
institutions is strongly linked to the collaborations between them. We have
estimated the knowledge flow in and out of Institutions and identified the top
knowledge source and sinks.
