Currently, innovations on eco-friendly, sustainability and energy-efficient technology are focused worldwide. This concept has diverted the attention of researchers to implement new natural products in many industries. The handiness and readiness of natural fibers are the main motivation for evolving new attention in sustainable development. Research gained momentum in developing novel natural fiber-reinforced materials in spite of its limitations, due to the ecological, environmental and health concerns raised by synthetic fibers. Huge amounts of agro-wastes with potential fiber contents are being discarded from many industries and are to be explored to meet the increasing demand for composite industries, which in turn helps to reduce deforestation as well as favors an effective waste management technique promoting healthier environment. The present study delivers a sound knowledge on availability of discarded fruit wastes and broad characterization of two industrial cast of areca and tamarind fruit fibers for its viability as a credible reinforcement in composites made of polymer matrix. The attained results authorize the potential of areca and tamarind fibers extracted from discarded fruit waste as a probable reinforcement in polymer composites for lightweight and domestic applications.