You just need a Chrome browser and a Filpkart filter by seller Extention so lets start the Guide on How to Filter Products on Flipkar by Seller Name using chrome extention.
#How to Filter Products on Flipkart By there Sellers
1.Download and Extract Flipkart seller Filter Extension for Chrome browser [HERE].
2Now Open Chrome And Type this in address bar “chrome://extensions/”and click on load unpacked extension And browse the extracted folder that you have downloaded from above link.
3. After loading the extension Restart the Chrome browser and Open Flipkart.com and search for any product and then scroll down there you will get a new option of Search by seller on Flipkart
4.Now Type the name of the Seller like W.S retail and Click on filter.Done! All the products sell by that particular seller will be shown.