Aim: To evaluate the effectiveness of birth bal therapy in terms of level of pain perception and birth experience among primi gravida mothers. Participants and setting: The study was conducted in Nirmala Hospital, in Suryapet, Telugana, India in with 700 annual births. The primi gravida mothers were recruited and were allocated by non-probability purposive sampling technique into the two arms of the study, but only 20 in study and 20 in control group participants. Intervention: The study group received birth ball therapy was done using discomfort can often be helped by body positions that allow gravity to speed dilation, such as walking, squatting, kneeling forward on a chair or sitting on the birthing ball. The birth ball therapy was given by investigator for 20 minutes again the same step is repeated in a 10 minutes interval. Measurement and findings: In active stage of labour (3-6 cm of cervical dilatation) the women completed the demographic and obstetrical information and pain was measured by 0-10 Modified combined numerical categorical pain intensity scale and labour outcome assessed by labour agentry scale (LAS). This study revealed that there was high significant difference found in pain at p<0.001level between study and control group. Conclusion: The study concluded that, clinical implementation of birth ball therapy usage during labour could be an effective non pharmacological intervention in reducing pain perception.