The management of tendon injuries has not only seen advances in primary care, repair technique, suture technique, understanding of biomechanics and postoperative evaluation protocol, but also a drastic change in mobilization protocols ranging from strict immobilization to early/delayed active mobilization. Hence the present study was planned to evaluate the early repair of Flexor Tendon in Zone ll, with Modified Kessler Technique have more functional Outcomes. A prospective randomized clinical trial was planned with 30 patients suffering from flexor tendon injury, in Zone II. The patients were admitted from Nov 2016 to Oct 2018 in the Department of Plastic Surgery, Pulse Emergency Hospital, Patna, Bihar. All the patients were informed consents. The aim and the objective of the present study were conveyed to them. Approval of the institutional ethical committee was taken prior to conduct of this study All patients had acute injuries on the hand in flexor zone II. They had features of flexor tendon injury with tendon sheath and pulley injury in which the repair was expected to be surrounded with adhesion during healing due to tendon sheath Laceration, and further injury during exposure of tendon ends. The present study concludes that primary or delayed primary repair of sharply cut flexor tendons with a modified Kessler core suture and locking epitendinous circumferential suture increases the overall strength, allowing active mobilization, which causes cyclic tension loading, leading to prevention of adhesions and good tendon healing. There needs to be improved awareness of the evidence, and we would suggest that departmental guidelines should be drawn up or updated based on current evidence in order to encourage best practice.