Uterine didelphys represents a uterine malformation where the uterus is present as a paired organ.There is presence of double uterine bodies with two separate cervices, and often a double or septate vagina as well.We report a case of single pregnancy in the right sided uterine body of a didelphic uterus with cervical incompetence.Case report:A 24 year G3A 2 with 14 weeks pregnancy came for routine antenatal check-up. On examination she had uterine didelphys with 2 cervices & complete longitudinal vaginal septum. Ultrasonography showed didelphys uterus with pregnancy in right hemiuterus and cervical incompetence. Cervical encirclage was done (Mc donalds). The patient had an uneventful antenatal period except for a persistent breech presentation. She was taken up for elective LSCS on at 39 weeks. An inverted T incision was given to deliver a 3Kg healthy male baby by breech extraction. Postoperative period remained an uneventful. Discussion: Mullerian anomaly rate is reported between 0.1-1%in general population with significantly higher rates associated with infertility and reproductive wastage.