Introduction: Oral lichen planus (OLP) is a chronic inflammatory and immune mediated disease that affects the mucous membranes. OLP is cell-mediated, immune damage to basal keratinocytes that are recognized as being antigenically foreign or altered. Many treatment modalities have been tried since the time immemorial, steroids being the mainstay of the treatment, with more benefits than adversities, but now-a-days alternative/ herbal medicines are used keeping in view the chronicity of disease and long term treatment required to cure it. Curcuminoids, the major constituent of turmeric, has anti-inflammatory, antioxidant and anticancer properties. Natural / herbal product has minimal adversities so this can be more helpful for patients in the upcoming time. Aim: The study was conducted to compare the efficacy of conventional topical corticosteroid, triamcinolone acetonide 0.1% with 1% curcumin gel in OLP patient and to assess reduction in burning sensation, regression of size and ulcero-erosive appearance of lesion. Materials and Methods: An intervention study was conducted on 40 patients diagnosed with OLP which were divided into two groups. Group A was provided with Ointment 0.1% triamcinolone acetonide while Group B was provided with 1% curcuma longa extracts gel for local application on the affected regions The results were analysed using Students t-test,discrete (categorical) data were summarised in number (n) and percentage (%) and compared by chi-square (χ2) test. Groups were also compared by two factor (groups and periods) repeated measure (RM) analysis of variance (ANOVA). Results: Intragroup comparison showed statistically significant reduction in burning sensation, size and extension of lesion (p<0.001) as well as erythema and ulceration (p<0.001) in both the groups. In inter-group comparison, Group A showed reduction in burning sensation (97.3%), size and extension of lesion (100%), reduction in erosive pattern (94.7%) and reduction in ulcerative .......