The rapid growth of industrialization and urbanization culminated the problem of waste disposal. The collection, transportation and disposal of solid waste involves huge expenditure, therefore less attention is being paid on its disposal. Solid waste is the cheapest and abundantly available renewable source of energy. The most common method of waste disposal as landfilling and incineration causes land and air pollution. Pyrolysis of waste material yields bio-fuels such as solid, liquid and gaseous fuels and minimizes the air pollution. Waste paper cups and wood are pyrolyzed in a lab scale fixed bed reactor fabricated locally at the Institute. The reactor is fully insulated electrically heated of 34 cm length and 7 cm internal diameter and air free atmosphere is produced by continuously injecting inert nitrogen gas. Effect of temperature, particle size, composition of feedstock and flow rate on bio-oil yield are studied.