The trends in the current developments for utilising the available natural resources as bio-renewable/sustainable supplies have captured the attention of scientists/industrialists in the recent past. The unlimited alarms that are interrelated with the health and environment due to the exhaustive piling up of unwanted and discarded stocks and the damages caused, are indirectly interwound with the foreseeable reduction of fossil/mineral wealth. The bio-renewable/sustainable supplies are hence, opted as platforms for reinforcement in a wide array of applicable functions. Developmental innovations leading to new approaches and perfect tools, as nano-composites through green bio-renewable/sustainable/bio-degradable supplies, submit for note-worthy advantages and are found to be associated with exceptional attributes such as rapid and cost-effective fabrication, with better thermal/mechanical stability, besides easy portability/reusability. It would be worthy mentioning that nano-composites from structured bio-degradable resources find their utility in a broad spectrum of fragments such as food preservation/packaging, agriculture/bio-sensors, bio-medical, optical/energy-storage, water-treatment/marine, automotive/automation, construction, flame-retardant/coating, and many more. Here in this chapter, we comprehensively compare the recent advancement/development of varied applications of nano-composites from bio-renewable/non-bio-renewable reserves. In conclusion, the solutions to the debatable question, and the potential developmental break-ups with new-openings for the naturally agglomerated nano-composites are reflected briefly.