Over the past ten years, India’s trash production has grown at the same rate as the country’s growth. Lots of trash is being generated because of more people living in cities, more factories, and changes in people’s living standards. This trash causes damage to the environment and the economy. Trash, which includes dry trash, wet trash, hazardous trash, and industrial trash, has grown along with the country’s growth. The current technologies for Waste to Energy projects include Incineration, Bio-methanation/Bio-CNG plants, Composting, and Gasification plants. This document presents the status, advantages, and disadvantages of each technology. To address this issue, efficient solid waste management, especially the recycling of materials, is crucial for sustainability. Thermochemical technologies have arisen as an effective and sustainable approach for transforming various waste materials into useful products, including fuels and chemicals. These are feasible methods to address the rising population and industrial expansion. Pretreatment methods have been used into waste conversion processes to improve energy generation. This study contributes to a better understanding of India’s solid waste management and helps lawmakers and practitioners come up with effective and long-lasting waste management policies for the country.