Teeth are the hardest part of the body and can be preserved for a long time after death without any gross changes. The most reliable and simplest method to calculate the age is through the teeth, whether living or dead, rather than skeletal remains, especially when they are in worse condition. Age estimation through teeth dentin can be done by many methods, such as biochemical, morphological, radiological and recently by spectroscopic methods like Raman Spectroscopy by analyzing the spectra of apical dentin. There are both metric and non-metric methods. The radiological method is broadly used as it is non-invasive, simple, and does not need extraction of teeth, especially in the living individual. As the pulp cavity diminishes in size in increasing age due to the deposition of secondary dentine, it can be used for age determination. The correlation between the reduction of the coronal pulp cavity and the chronological age can be assessed through panoramic radiography. The possibility to have all teeth of both dental arches on one film unquestionably represents an advantage. One can also compare the Tooth Coronal Index and pulp tooth ratio trend of all groups of teeth in the same individual. Race, ethnicity, and lifestyle affect the quality of secondary dentin deposition. Hence, this poster highlights Tooth the Coronal Index and pulp tooth ratio for age estimation and how it worked for Indian populations through a systematic review of the literature.