Arthritis is the most common cause of disability in adults all over the world, limiting everyday activities for billions of people. Herbs have been paid more attention since they have very little side effects. Cardiospermum halicacabum Linn, (Sapindaceae) and VitexnegundoLinn. (Verbenaceae) were used in traditional medicine for the treatment of arthritis. The present investigation was undertaken to evaluate anti-arthritic activity of novel herbal aerosol spray formulation containing methanol leaf extracts of Cardiospermum halicacabum (MLECH) and Vitexnegundo (MLEVN). A novel topical aerosol spray was formulated using MLECH and MLEVN(2% w/v each) and their quality control, stability and efficacy studies was carried out as per United States Pharmacopoeia (USP), International Conference on Harmonization (ICH) and Organization for Economic Co-Operation and Development (OECD) guidelines respectively. CFA induced arthritis method was employed for the evaluation of antiarthritic activity. Assessment of body weight, biochemical parameters, hematological parameters, serum biomarker levels, photographic, radiographic analysis and histopathological investigations were carried out as a supportive evidence for the anti-arthritic efficacy of the developed novel herbal aerosol spray formulation. The results of the quality control test complied with USP standards and the stability study clearly revealed that the formulated topical herbal aerosol spray was found to be stable. Significant (p<0.01) alterations in rat paw volume, body weight, biochemical, hematological, serum biomarker levels and reduction in inflammation and hyperplasia of synovium of formulation treated rats were observed compared with arthritic rats. Study concluded that the formulated novel herbal aerosol spray exhibited good anti-arthritic activity.