India, July 2 -- Lululemon Athletica Inc. has filed a lawsuit against retail major Costco Wholesale Corp. for allegedly selling knockoff or dupe versions of its popular fashion products, including pants, hoodies and jackets, at significantly cheaper price than its originals.

In a lawsuit filed in California, the athletic apparel maker said, "Costco has unlawfully traded upon Plaintiffs' reputation, goodwill and sweat equity by selling unauthorized and unlicensed apparel employing knockoff, infringing versions of Plaintiffs' well-known trade dress and design patents..."

The company seeks to recover fully for the monetary damages and significant harm to lululemon's brands and reputation caused by Costco.

According to Lululemon, Costco has ...