Kolkata, Jan 05 (ANI): The young and the old gathered in hundreds in Kolkata on Sunday to take part in a marathon to create awareness about the cancer disease and support the underprivileged cancer patients. From celebrities to corporate to school children, participants beat the chill as they ran for the noble cause for over 42 kilometres along the city streets. Former captain of Indian cricket team, Sourav Ganguly, was also present at the event to encourage the participants.