The overarching objective is to study options for enhanced private sector engagement in pandemic prevention; preparedness and response (PPR) in the State of Gujarat building on ongoing initiatives and explore potential new approaches. There are three different tasks and objectives as outlined below: 1. Task 1: Document the Integrated Disease Surveillance System in Shantigram Housing Society; Ahmedabad:* Detail the process of developing the surveillance system; including stakeholder engagement and institutional mechanisms.* Identify innovations and challenges in reporting various surveillance information and use of the data including promotion of community led initiatives for prevention.* Analyze surveillance information over a period of 6-12 months applying both quantitative and qualitative tools to assess the system's effectiveness.* Provide recommendations for improving the existing system and document key lessons to promote this approach as a model for replication in other urban housing societies. 2. Task 2: Conduct a Process Evaluation of the collaborative Integrated Disease Surveillance involving both public and private sectors in Surat Municipality.* Identify key enablers that contributed to the successful partnership building.* List factors including trust building measures that ensured sustained reporting by the private sector * Mechanisms being used to provide feedback to the private sector* Document lessons emerging for wider application especially in metropolitan disease surveillance 3. Task 3: Develop a Model for Involving Private Sector Laboratories in Disease Surveillance:* Engage with key stakeholders; including private laboratories and the health department; to develop the model.* Implement the model for surveillance of specific conditions as per the IDSP norms and ensure reporting to the IHIP portal in one district.* Evaluate the model's effectiveness over a period of 6-12 months.* Document the key lessons and provide recommendations for improving private laboratory participation in disease surveillance.