72-patients aged 18 years and above with flexor tendon injuries in zone 2 were included in this prospective trial in which patients were randomized to receive either early active motion (EAM)(n=34) or modified Kleinert passive motion (KPM) (n=38). The primary outcome of interest was the range of motion (ROM) measured with the total active motion (TAM). The secondary outcomes of interest were extension deficit at the proximal interphalangeal (PIP) and distal interphalangeal (DIP) joints and grip strength, Disabilities of the Arm, Shoulder and Hand (DASH), HQ-8 questionnaire, patient satisfaction and incidence of adverse events. All outcomes were measured at 3 months and 12 months. The results of the study showed that the PIP extension deficit as well as PIP + DIP joint extension deficit was significantly lesser in the EAM group at 3 months. It was also seen that the grip strength, HQ-8 and DASH outcomes were significantly better in the EAM group at 3 months along with higher patient satisfaction. No significant difference was observed in TAM between both the groups at all time points. Results in both groups were similar at 12 months.