You can always submit your measurement after placing the order. For now, just select Customize with Made to Measure, click Add to Shopping Bag and complete order. Later on go to Account section, visit My Orders page and submit your latest measurement.
If your bare chest size measurement is 40 inches, you should select size 40 only from the drop-down.The Top chest attribute in the size chart refers to the garment chest size. It is inclusive of the required 3 to 4 inches loosening, to ensure the right fit.
If your bare chest measurement falls between 2 sizes i.e 37 inches, you should select size 38.
https://www.utsavfashion.com/product/embroidered-art-silk-kurta-set-in-light-peach-mgv9491261073Embroidered Art Silk Kurta Set in Light Peachhttps://medias.utsavfashion.com/media/catalog/product/cache/1/small_image/295x/040ec09b1e35df139433887a97daa66f/e/m/embroidered-art-silk-kurta-set-in-light-peach-v1-mgv949.jpg48.861USDInStock/men/men/plus/men/festive/men/art silk/men/pink/men/kurta pyjama/men/stone work/men/traditional/men/zariEmbroidered Art Silk Kurta Set in Light Peach <ul><li> Art Silk Kurta in Light Peach</li><li> This Readymade Attire is Highlighted with Zari and Stone Work. Crafted in Chinese Collar and Full Sleeves</li><li> Available with an Art Dupion Silk Churidar in Beige</li><li> Do note: Footwear shown in the image is for presentation purposes only. Half to one inch may vary in measurement. (Slight variation in actual color vs. image is possible)</li></ul>USDtype_new:Kurta Pyjamacolorfam:Pinkfabric:Art SilkPinkArt SilkKurta Pyjama11%-20%MenMore than 15 DaysReadymadeFestiveMenswearStone Work, Traditional, Zari32, 34, 36, 38, 40, 4244, 46, 48, 50, 52, 54, 56, 58, 60