Experimental: upfront surgery

after staging workup and biopsy, patient being taken up for upfront surgical exploration will undergo staging laparoscopy followed by exploration and interaortocaval lymphnode sampling. After ruling out distant metastasis, local resectability will be reassessed and curative surgery will be performed. . Post-operative complications were recorded and graded according Clavien Dindo classification

Experimental: Neoadjuvant chemotherapy followed by surgery

NACT group will receive gemcitabine and platinum combination. Most common regimen comprised of gemcitabine (1000 mg/ m2 intravenously over 30-60 min) on days 1 and 8, and cisplatin (75 mg/ m2 intravenously over 2 h) on day 1, every 21 days. In case of renal compromise, carboplatin was used. Response was assessed using CECT abdomen and PET scan. Chemotherapy related toxicity will be graded according to Common Terminology Criteria for Adverse Events (CTCAE) v 5 .0.