Rachna Nag Chowdhuri is the former Director of Impact at the Tony Blair Institute and Senior Vice President, Impact at the Global Innovation Fund. She led the work of GIF’s Grants and Impact functions. She has extensive experience in research, evaluation and evidence-based policy making across South Asia, South East Asia, Southern and West Africa. Her evaluation expertise is in social protection, gender, education and health. Rachna co-chairs the Scaling Up Community of Practice Monitoring and Evaluation Working Group.