"We are One-Earth, One Family and we share One Future." is the opening sentence of the G-20 New Delhi Leader's Declaration Statement. In this statement the leaders pledged to "resolve to fully and effectively implement the 2030 Agenda and the Sustainable Developmental Goals (SDG's)". The leader's commitments contained in the Declaration statement reflect, "the philosophy of living in harmony with our surrounding ecosystem". The Declaration recognises the "Cascading challenges and crisis that have reversed gains" on the 2030 Agenda of SDG's. The leaders "affirm that no country should have to choose between fighting poverty and fighting for our planet". The leaders resolved to act - accelerate strong, sustainable, balanced and inclusive growth; - accelerate the full & effective implementation of 2030 Agenda - pursue low-carbon and environmentally sustainable development pathways; - Pursue reforms for better, comprehensive and more effective finance avenues. The leaders commit to "taking collective actions for effective and timely implementation of the G-20 2023 Action Plan to accelerate progress on the SDG's; including through actions on eliminating hunger and malnutrition, strengthening global health and implementation of One Health approach, and delivering quality education." (a) State and discuss the importance of collective fight in achieving SDG's. (b) Discuss briefly the action plan of G-20 leaders in promoting 'One Health' approach.