The growing need for sustainable and cost-effective urban transport has led to increased attention towards alternative fuels such as Compressed Natural Gas (CNG). This paper analyses the adoption and usage behaviour, level of satisfaction and future intentions of the users of CNG auto services in semi-urban setting. Descriptive and analytical research design was used and primary data was obtained via a structured questionnaire that was given to CNG auto users. The analysis on the impact of socio-economic factors, awareness, cost perception, and service quality on the usage behaviour and satisfaction is conducted. The results indicate that the lower and middle-income populations have been the major users of CNG autos, which can be attributed to the fact that it is affordable and is perceived to save money. The statistical analysis shows that the awareness and frequency of usage have a significant association, and the service quality factors, especially comfort and availability, have a significant association with customer satisfaction. Moreover, environmental awareness is determined to have a positive impact on intentions to adopt in the future. The paper concludes that CNG-driven auto services are the potential and sustainable means of transportation, with both economic and environmental benefits. However, challenges related to infrastructure and availability needs to be addressed to enhance adoption. The results can be useful to policymakers and service providers to advance environmentally friendly urban mobility solutions.