 The Kollam - Punalur - Edamon section of Sengottai rail line which run parallel to busy and congested Kollam - Punalur national highway is suitable and highly viable for DEMU operations.Kollam MEMU Shed is a motive power depot facility for maintaining MEMU rakes, situated in the city of Kollam in the Indian state of Kerala.It is one of the four MEMU rake maintenance sheds serving the Southern Railway zone of the Indian Railways.