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Background and Aims Post-caesarean section pain and discomfort may be anticipated due to skin incision, uterine incision, and uterine contraction. Inadequate postoperative pain management may impede maternal/infant bonding and increases the risk of thromboembolism, development of chronic pain. We aimed to compare the post operative analgesic efficacy between transversus abdominis plane block and transversalis fascia plane block.Methods After obtaining the ethical committee clearance (vide no: AIMS/EC/22/92) and written informed consent, a prospective observational randomized double blinded study was conducted. This trial was also registered at Clinical Trial Registry of India (CTRI/2023/05/053001). 60 patients aged between 18–40 years belonging to ASA 1 and 2 patients undergoing elective Lower Segment Cesarean Section (LSCS) under spinal anesthesia were randomly allocated into two groups: Group TAP and Group TFP. Group TAP received ultrasound guided transverse abdominal plane block, whereas Group TFP received ultrasound guided transversalis fascia plane block. 20 mL of 0.375% Ropivacaine was administered in each group. Patients in both groups also received multimodal analgesia in the form of Injection Diclofenac and Paracetamol. Our primary outcome was the time to need for first rescue analgesic dosage. Secondary outcomes included pain assessment using VAS score, patient satisfaction score, and post operative nausea and vomiting.Results The time to need for first rescue analgesic medication is significantly delayed in group TFP as compared to group TAP (p<0.05). The pain scores were also better in group TFP than group TAP(p<0.05).Conclusions The analgesic efficacy of transversalis fascia plane block was superior in comparison to patients receiving transverse abdominis plane block scheduled for elective lower segment caesarean section.