Energy is the symbol of economical developments and human settlements. This study is carried out to find the effect of oil yield by optimization of temperature and residence time for the thermochemical conversion of solid waste into the liquid fuel by pyrolysis reaction in an auger reactor made of stainless steel with the heating rate of 10 °C/min with the maximum temperature range of 1000 °C. The agro waste of Tomato plant are left in land after harvesting which can be converted into usable carbon neutral liquid fuel by further processing. The experiment is carried in a different temperature ranges from 450, 500, 550, 600, 650 °C. Tomato plant is collected, dried in open solar drying until the sample weight remains constant to remove the bound moisture content. Then crushed into small pieces, and subjected to thermogravimetric analysis, proximate and ultimate analysis. Further the bio oil is characterised with GC-MS and FTIR to find the compounds present. The moto of this study is to find the convert the waste into high energy content liquid fuel. © 2019 IOP Publishing Ltd. All rights reserved.