The objective behind this guest lecture was to give an insight to students - how to create data systems that drive business value while ensuring long-term sustainability and minimizing environmental impact. The session on Sustainable, Value-Focused Data Systems, led by Mr. Tushar Agarwal, Senior Vice President at NatWest Group, provided valuable insights into designing and implementing data systems that drive business value while ensuring sustainability. During the session Mr. Tushar guided the students about four cornerstone of effective data systems:1. *Value-Driven Approach*: Focus on creating data systems that deliver actionable insights and drive business outcomes.2. *Sustainability*: Prioritize data management practices that minimize environmental impact and ensure long-term viability.3. *Data Governance*: Establish robust governance frameworks to ensure data quality, security, and compliance.4. *Collaboration*: Foster collaboration across functions to ensure data systems meet business needs.