Orofacial clefts are major human birth defects with complex etiology. Previous studies have proposed Transforming growth factor - beta 3 (TGF-B3) gene as one of the important genes in which polymorphisms may contribute to nonsyndromic cleft lip and palate, however none of the studies included Indian population. The HLA Human leucocyte antigen] loci are the most polymorphic human proteins, and by virtue of their extreme polymorphism ensure that few individuals are identical. Hence HLA typing can be used to identify a subset of population who are at an increased risk of developing or...