About 1% of the population is estimated to have mild bleeding disorders. Many of them, particularly with platelet type bleeding disorders, remain poorly characterized. 1 Inherited platelet function disorders (IPFDs) are characterized by highly variable mucocutaneous bleeding manifestations. Laboratory diagnosis in most of these defects is complicated by variability in clinical expression of the bleeding symptoms in affected individuals. IPFDs are generally diagnosed using a combination of Light Transmission Aggregometry (LTA), Flow cytometry and ATP secretion assays.RAS guanyl-releasing protein 2 gene (RASGRP2) (Ensembl: ENSG00000068831) is located on chromosome 11 (11q13.1 gene/locus MIM#605577), spans 18.55 kb and has 22 exons. RASGRP2 is a calcium and diacylglycerol-regulated guanine nucleotide exchange factor I (CalDAG-GEFI) that leads to activation of Rap1, an essential signalling-knot in the 'inside-out' αIIbβ3 integrin activation in platelets. 2 CalDAG-GEFI is activated in response to elevated cytoplasmic calcium concentrations, downstream of engagement of agonist receptors coupled to phospholipase C. 3 Its main target is the small GTPase Rap1, an important regulator of integrin-mediated adhesion in different cell types. 4 Thus far, 27 variants in RASGRP2 have been reported to be linked with platelet defects. 5 This is the first report from India on a series of eight patients with RASGRP2 variants associated with platelet function defects and bleeding manifestations.