The study investigates bathymetry (topographic) height and gravity studies over the region of Aravalli-Delhi Fold Belt (ADFB). The general topography trend is low at the NW portion and increases toward SE. Gravity trend varies from − 20 to 100 mGal. A significant change in the trend of gravity contour pattern is probably due to the subsurface deflection of ADFB due to rotation related to plate collision. The bathymetry elevation height and gravity anomaly correlation in the ADFB region has been checked by using principal component analysis (PCA). The first four principal components (PCs) of bathymetry elevation and gravity are evaluated, and their comparison analysis is carried out. The results showed that correlation coefficient values are 0.9908 and 0.8938 for PC1 and PC3, respectively. These high values indicate strong positive correlations between gravity and elevation. The correlation coefficient values of PC2 and PC4 are − 0.9186 and − 0.9270, respectively. Such high negative values indicate a strong inverse relationship. The study concludes that only odd PCs follow the positive trend while even PCs have negative trends in the study area. Morphometric studies through various pinpointed watersheds that are active and also deciphered direction of tilting of different watersheds.