Mumbai -- Ishaqzaade star Arjun Kapoor seems unruffled by the criticism from some people that the film is the same old story repackaged in a modern way". He said "Criticism is a part and parcel of every profession. It is like fair assessment of the work and it implies that I need to work hard and improve. "Even if I give a blockbuster, there will be criticism. If the hero is so bad then the film wouldn't have worked. Even when I do my 50th film there will be criticism. It is my duty to keep improving," he added. The recently released romantic film based on the background of politics, which stars Arjun and Parineeti Chopra in the lead roles, is attracting the young brigade and has done a very good business so far.