From THIRUVANANTHAPURAM to MUMBAI Trains are operated in three routes viz 1)via KONKAN,2) RENIGUNTA,3)KRISHNARAJAPURAM;
From BANGALORE to MUMBAI Trains are operated in three routes viz 1)via HUBLI,,2)Via BELLARY,3) Via GUNTAKAL .
But,till date CHENNAI to MUMBAI operates only one GUNTAKAL over congested Route. E