Background: transversus abdominis plane (TAP) block as an effective chunk of post operative multi modal analgesia for lower abdominal surgeries. Objective: to evaluate the effectiveness of TAP block as a post-operative analgesia technique and usefulness in decreasing requirement of opioids as well as other pain killer medicines. Materials and Methods: This was a prospective study conducted from June 2018 to October 2018. Using convenient sampling technique, a total of 60 patients of American Society of Anaesthesiologists (ASA) physical status grade I or II, randomly divided into two groups: CONT group and TAP group by the sealed envelope technique. The ‘control’ group acted as control and was given spinal anesthesia (SA) with hyperbaric bupivacaine with a 27G BD spinal needle in lateral position. ‘TAP’ group’ received the same spinal anesthesia and TAP block under ultrasound guidance with 23G 100-mm needle with 0.25% bupivacaine 20 ml along with dexamethasone 4 mg on each side. Results: Mean time to rescue analgesia in TAP & Control group was 612.8 min and 84.4 min respectively (p<0.05) and Mean time to rescue analgesia was 612.8 min and 84.4 min respectively (p<0.05). Average VAS score was higher in control group in compare to TAP group participants. Mean tramadol requirement for Group TAP was 55 mg and for the control group was 150 mg (p<0.05). Conclusion: TAP block reduces pain, prolongs the time to first analgesic request and decreases supplemental opioid analgesic requirement when used as a component of multimodal analgesic regimen for pain relief after caesarean section.