Actor Karan V. Grover says playing a surgeon on-screen gives him a sense of great responsibility, and he expressed his gratitude on National Doctors' Day on Monday.He currently plays a doctor in the StarPlus show "Kahaan Hum Kahaan Tum"."On the day of National Doctors' Day, I would like to salute all the doctors and express my gratitude. Since I am playing the role of a surgeon on-screen, it gives me a sense of great responsibility," Karan said in a statement."I make sure that I justify it completely because my mom too belongs to the medical fraternity. Hence I keep calling her and she connects me to different doctors. I take tips on how my body language should be, how to hold the scissors, what a doctor's demeanour should be and more. This is one of the most interesting characters for me in my television career," he added.It is a fresh take on love and relationships. The show focuses on a surgeon and an actress. Amidst their hectic schedules, how they find time for each other is what the show is about.