On a regular basis, two full trains should run between Mangalore and Bangalore. One via Mysore can leave by 1915 and reach MYS by 0400 and SBC by 0630. Another via Kunigal can leave by 2230 and reach SBC by 0830.
It has to be noted that from MAQ, there are no departure after 2220 West coast. So one of the platform can be used for Bangalore train.