Background: The Achilles tendon is the most commonly ruptured tendon in the human body. Chronic or neglected Achilles tendon ruptures are defined as those of greater than 4 weeks’ duration without treatment. A number of operations have been described for the repair and augmentation of the ruptured Achilles tendon, including debridement, local tissue transfer, augmentation, and synthetic grafts. Local tissue transfer most commonly employs either the flexor hallucis longus or flexor digitorum longus tendon to treat a chronic rupture. The transfer of the flexor hallucis longus (FHL) tendon for chronic Achilles tendon disorders can both reduce pain and improve function Materials and Method: This study was carried out at the Department of Orthopaedics, Navodaya Medical College, Raichur over a period of 2 years. In this study 30 patients (17 male, 13 females) with chronic tendoachilles rupture were admitted and were treated by flexor hallucis longus tendon transfer. Functional outcome was assessed as per ATR score & Leppilahti scoring. Results: A total of thirty patients were evaluated in our study of which there were 17 males and 13 females. Leppilahti Scoring showed that excellent outcome found in 76.7% cases at the end of 9 months. Fair outcome found in 6.7% cases at the end of 9 months. Good outcome found in 16.7% cases at the end of 9 months. Conclusion: Chronic ruptures of tendo Achilles are potentially debilitating & requires repair or reconstruction. Patients achieve almost normal maximal strength after open FHL transfer. Key words: Chronic achilles tendon rupture, ATR score, FHL transfer, leppilahti scoring