Here are some of the top colleges in Bangalore that offer programs related to sustainability and environmental engineering, which are beneficial for engineers looking to focus on sustainable development:

1. Indian Institute of Science (IISc) - Known for its world-class research in sustainable technologies and environmental engineering. IISc offers specialized programs in civil and environmental engineering that address sustainable practices, resource management, and clean energy applications.

2. R.V. College of Engineering - This college has a strong environmental engineering program that includes sustainability in its curriculum. With a focus on sustainable infrastructure and environmental resource management, R.V. College provides both theoretical and practical training.

3. BMS College of Engineering - BMS offers environmental engineering courses emphasizing sustainable urban planning, water resources management, and environmental policy, making it ideal for engineers with a sustainability focus.

4. Dayananda Sagar College of Engineering - Known for its environmental and biotechnology engineering departments, this college includes sustainability in its project work, research, and community outreach, which is critical for students interested in eco-friendly technology solutions.

5. Christ University - The university offers a Master’s program in Environmental Science and an MBA in Sustainable Development, focusing on sustainable practices, energy management, and corporate responsibility. It is well-suited for engineers interested in environmental policy and sustainability.

These institutions provide a comprehensive foundation for engineers interested in sustainability, blending theoretical knowledge with applied practices in sustainable engineering and environmental sciences. For more details on admission requirements and course offerings, checking with each college's admissions office is advisable.