It is maveli reborn as Mail. i've been telling this since several days.
They have random rake sharing. The RSA between Mail and Westcoast takes place at Chennai Central only. Whereas in Mangalore Central they'll send Maveli's rake, attached by a parcel van as Mail. Incoming mail is sent as Malabar Express. Malabar Express of the morning is sent as Maveli Express and westcoast express of morning is sent as Malabar Express.