The Secunderabad–Lokmanya Tilak Terminus Duronto Express is a Superfast Express train under Duronto category that operates between Secunderabad Junction and Lokmanya Tilak Terminus.

[1] The service is operated by South Central Railway zone of Indian Railways and connects the Indian states of Telangana and Maharashtra using train numbers 12220 (Secunderabad–Mumbai (LTT)) and 12219 (Mumbai (LTT)–Secunderabad) respectively The 12220 / 19 Secunderabad–Mumbai (LTT) Duronto Express covers the distance of 773 kilometres in 12 hours (64.42 km/h) in both directions and its fare thus includes an additional Superfast surcharge for the service as it is quite above the average speed of an express train which is 55 km/h (34 mph) as per Indian Railways rules.

Being a Duronto Express train, it has commercial halts at Pune Junction and Solapur between its terminal stops.

However the 12220/12219 Lokmanya Tilak Terminus-Secunderabad AC Duronto Express runs from Secunderabad Junction to Lokmanya Tilak Terminus with technical halts at Wadi Junction,Lonavala,Karjat Junction and Khandala.

Sometimes people become confused because according to Indian Railways Permanent Way Manual (IRPWM) on Indian Railways website or Indian Railway Institute of Civil Engineering website, the BG (Broad Gauge) lines have been classified into six groups ‘A’ to ‘E’ on the basis of the future maximum permissible speeds but it may not be same as present speed.