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Background: Bicaudate index, Bicaudate - temporal index and Huckman number were commonly used radiological indices to accurately evaluate intracranial ventricular volume. Established normal values for these indices were based on study done among western population. Reference values were not established for these indices in Indian population. Hence this study is undertaken to establish the new reference values for Bicaudate index, Bicaudate - temporal index and Huckman number, based on age and sex in Indian population. Methods: The retrospective study was done in Department of Radiology, Karpagam Faculty of Medical Sciences and Research, Coimbatore during the period between 1st June 2016 to 31st July 2016. One hundred subjects, aged between 5 to 90 years, with normal CT brain performed in Siemens SomatomScope multislice CT scanner were analyzed for this study and Bicaudate index, Bicaudate - temporal index, Huckman number were calculated. Results: Mean Bicaudate Index was 0.14 +/- 0.03. The mean Bicaudate - Temporal Index was 0.13 +/- 0.03. The mean Huckman number in male was 5.09 +/- 0.76 and in female was 4.70 +/- 0.57. Conclusion: The new reference values for Bicaudate index, Bicaudate - temporal index and Huckman number in Indian population based on age and gender was established in our study. KEY WORDS: Bicaudate index, Bicaudate - temporal index, Huckman number, Computed Tomography, Brain.