Background: Atlas, atypical cervical vertebra possesses Foramina transversarium (FT), a cardinal feature perusing numerous morphological variations with great clinical importance. So, the aim of our current study was to investigate the morphological features including a detailed morphometry of foramina transversarium of atlas among North Indian population. Materials & methods: The current anatomical observational study was carried on 55 adult dry atlas both sexes from the department of Anatomy, SGT University, Gurugram. Detailed morphometry of FT like antero- posterior distance (APD) & transverse diameter (TD) was measured including inter foraminal distance (IFD) by a digital vernier caliper. Morphometry was conducted for vertebral foramen also. Morphological variability such as shape, completeness, absence or duplication of foramina was also examined by visual inspection Data obtained from the observation was tabulated and frequency analysis was performed. Results: The mean values of morphometric parameters on right & left sides were: Antero posterior distance 6.93mm & 6.65 mm; Transverse diameter was 5.40 mm & 6.32 mm respectively and Inter foraminal distance was 24.23 mm. The Antero posterior distance & transverse diameters of vertebral foramen was 29.61 mm, 14.06 mm & 22.78 mm. Most frequent morphological shape of FT was oval (51%) followed by rounded (34%) & least was quadrangular (14%). The incidence of oval FT was predominant with 20% of incomplete foramina. Accessory foramina were observed in 9.09% & only 1.8% presented with absence of FT. Conclusions: As FT of atlas shows tremendous morphological variability, so our detailed morphometry & morphological evaluation of FT among North Indian population will be a great help for the clinicians especially neurosurgeons to diagnose & treatment of upper cervical spine pathologies to relieve patients with vascular insufficiencies.