Background: Age estimation helps in both civil as well as criminal cases. Cranium is a well preserved part of human skeleton, so it has a great value for estimation of age by a forensic expert. Importance of cranial suture closure has been accepted with some range. Materials and method: The study was conducted on 100 subjects (50 males and 50 females both having tribals and non-tribals) brought for medicolegal autopsy at RIMS Ranchi.The subjects were divided into five age groups viz. 20-30 years, 30-40 years, 40-50 years, 50-60 years and 60 years onwards; each age group consisting of 20 individuals. Results: Status of closure with age at 9 ecto-cranial suture landmarks were studied. The nine landmarks studied were- Mid Lambdoid (ML), Mid Coronal, Anterior Temporoparietal (AT), Posterior Temporoparietal (PT), Superior Sphenotemporal (SST), Lambda(L), Bregma (B), Anterior Sagittal (AS) and Obelion (O). Meindl and Lovejoy scoring system with some modifications was used. Conclusion: Males show earlier closure than females. Tribals show earlier closure than non-tribals. No bilateral variation was observed in paired cranial sutures.