The study evaluates the tectonic activity of the Tupul basin in Manipur, spanning parts of Noney, Kangpokpi, and Churachandpur districts. Data from DEM, SENTINEL-2 satellite imagery, SOI-toposheets, and field verification were used to analyze geomorphic indices such as the SL index, Transverse Topographic Symmetry (T), Valley Floor Width to valley Height ratio (Vf), Drainage Basin Asymmetry (AF), and Basin Elongation Ratio (Eb), along with hypsometric curve and integral calculations. The findings highlight significant tectonic influences. SL index values (>10) identify knick points, while a T-value of 0.422 indicates basin asymmetry. Vf ratios (0.085–0.186) suggest active incision forming V-shaped valleys. An AF of 70.32% reveals northeastern uplift causing river shifts southwest, and Eb value of 0.64 indicates tectonic deformation. The hypsometric integral (49.5%) suggests the basin is in an early mature erosion stage. The 101.0 km² basin demonstrates active tectonic uplift, erosion, and river adjustments.