He further honed his surgical expertise through a fellowship at the renowned Dr. Agarwal’s Eye Hospital in Chennai, where he trained under the legendary Dr. Amar Agarwal, a pioneer of phacoemulsification in India. In April 1999, Dr. Pannu began his private practice in Ropar, Punjab, alongside his wife Dr. Ravinder Kaur Pannu, a gynecologist. By 2006, the couple had established a state-of-the-art modern hospital in the city. Dr. Pannu was a trailblazer in the region, introducing advanced techniques such as phacoemulsification, foldable lenses, aspheric, multifocal, and toric intraocular lenses. In 2011, he became the first to perform LASIK laser surgery in Ropar.