What is the fastest train between Howrah and Mumbai?

howrah mumbai mailtrain no 12321best train for Bihar and JharkhandHowrah mumbai mail

12321 HWH MUMBAI MAIL Train Route train-enquiry12321 14 12321 HWH MUMBAI MAIL Route Station Arr Dep Halt Dist Day PF

12321 train route Full Journey in 12321 howrah mumbai mail in SL Class, Howrah Mumbai Mail Train

20473 train route No train will travel on a triangular route, with distances over 1,200 km on each leg, when it can travel straight from Delhi to Howrah or from