Peer-to-Peer (P2P) networks are increasingly gaining acceptance over the Internet as they provide an infrastructure for content search and exchange. Hybrid P2P architecture is used to provide directory services for network clusters to share resources between peers within and across clusters. In this paper, we propose an advanced Multi-Attribute based Content Indexing scheme in Hybrid P2P networks. The proposed Indexing scheme is present only at the Super Peer (SP) to enable an intelligent controlled query routing mechanism for better bandwidth management and search precision in P2P networks. The proposed content indexing scheme builds attribute specific content indices to search for similar information content for a set of multiple content attributes. The resulting controlled query propagation using Multi- Attribute Index Tables at SP avoids flooding of queries, improves search efficiency and reduces query response time as compared to flooding and caching.