Kiriti Roy is a fictional detective character starring in a series of Bengali novels and short stories written by Indian dermatologist and a popular Bengali novelist Nihar Ranjan Gupta. After coming back to India from UK, where he developed a keen interest in detective stories and met Agatha Christie, Gupta wrote his first detective novel, Kalo Bhramar [কালো ভ্রমর] where he launched his detective character Kiriti Roy [কিরীটী রায়]. Kiriti is often accompanied by his assistant, Subroto, who sometimes serves as the narrator of the stories.