As per the reports (Close shave for 3 jets at Chennai airport - The Times of India), a major collision between a plane landing and another plane about to takeoff was averted due to prompt action by the the pilot of the landing plane just in time. The plane about to take off delayed its takeoff as a plane that landed before did not vacate the runway and was at the end of the runway. The taking off plane after aborting its takeoff abruptly by applying '(hot) brakes', was taken for inspection bay for checks.
It is stated that due to maintenance of second runway, total load of about 400 daily flight movements are carried on single runway.
http://timesofindia.indiatimes.com/india/Close-shave-for-3-jets-at-Chennai-airport/articleshow/10109371.cms