Lucknowi suits are much in demand and there are lots of websites selling lucknowi suits online. some of them are like lucknowisuits.com (chikankari heavy work mukaish anarkali suits), Dress365days.com (online portal), lucknowichikan.in and Kurtipatterns.com
Google also started its online store selling stuff. Lets See when google starts selling apparels.
Origin of Chikankari
There are several theories about the origin of Chikankari. Chikankari - the process of chikan - was basically invented in Lucknow. It developed quickly during the period when the Mughals ruled and consisted of styles inspired by Persians. Lucknow grew into an international market for its renowned Chikankari work. There are references to Indian Chikan work as early as 3rd century BC by Megasthenes, who mentioned the use of flowered muslins by Indians. There is also a tale that mentions how a traveler taught Chikankari to a peasant in return of water to drink. However, the Noor Jahan story is the most popular of the lot. The name Chikan has been derived from the Persian word Chakin or Chikeen meaning a cloth wrought with needlework
Source: Wikipedia