Vadodara: Three men robbed a jewellery showroom at gunpoint in Manjalpur area of the city on Sunday afternoon. While alert staff and public nabbed one of the accused, the other two fled with gold ornaments of more than Rs 40 lakh. Police identified the man arrested as Sanjaykumar, originally from Uttar Pradesh. The three entered Kalyan Jewellers showroom at Tulsidham Crossroads in Tarsali around 3.19 pm. Police has started investigation on the basis of CCTV footage.