Background: A special study design known as the frontal assessment battery (FAB) was developed to evaluate frontal lobe impairment. Numerous researchers have used the FAB test to evaluate the integrity of the frontal lobe because Parkinson's disease (PD) is frequently linked to difficulties with cognitive and other higher mental functions. The Mini Mental State Examination of Folstein (MMSE), on the other hand, is another regularly used test used to evaluate mental status; however, because it does not only examine frontal brain functioning, its validity has been questioned in PD. Material and Methods: The goal of the current study was to compare the FAB test with the MMSE scale and see whether the test could be applied to Indian patients. Results and Conclusions: The FAB test was found to correspond with the patient's age and educational level. Despite the fact that the MMSE research is not regarded as a test that can only evaluate the condition of the frontal lobe, the results also correlated with that study's findings. To the best of our knowledge, this is the first study of its kind to be conducted in India.