Duronto express is a newer premium class of train which runs as fast as Rajdhanis. Duronto word comes from restless in Bengali as these trains had no intermediate commercial stops when they started. But since Indian Railways incurred losses for these trains, some technical stops were converted to commercial stops. On some routes (such as Delhi-Kolkata) they take lesser time than corresponding Rajdhani express. Unlike rajdhani some durontos also have non-air conditioned sleeper class. Thus, Duronto trains have classes First AC (1A), AC II-tier, AC III-tier and Sleeper. Bed-rolls in sleeper class of Mixed Duronto Express trains will be supplied to passengers on demand, on payment of stipulated charges. Duronto trains are distinguished by vibrant and colorful vinyl coating on the outer surface of the coaches. 1 duronto train runs from Kolkata to Tirupati - SMVB DURONTO EXP (12245).

Kolkata to Tirupati SMVB DURONTO EXP (12245) departs from Howrah Jn station (HWH) at 10:40 and arrives Renigunta Jn station (RU) at 09:50. Kolkata to Tirupati duronto fare is Rs.5265 in First AC, Rs.3190 in Second AC, Rs.2335 in Third AC and Rs.965 in Sleeper for this train which includes meal charges also.

Humsafar trains are long distance superfast trains that traverses overnight journeys. This is a new concept by the Indian Railways. Some Humsafar trains also run for more than 24 hours. Keeping in mind the middle class travellers, Humsafar was launched last year by the Former Railway Minister Mr. Suresh Prabhu. It has only Third AC class coach and have optional meal service. This train follows dynamic pricing meaning fare increases as the seat availability decreases. However, these trains hold lesser priority than Rajdhani and Shatabdi trains. Humsafar trains are equipped with modern day amenities and enhanced safety features. There are CCTV cameras fitted in every coach of Humsafar trains and there are charging points for each berth. One can also see current running speed of train on the LEDs fitted above doors. These trains are characterized by beautiful graffiti paint with vibrant sky blue color on outer surface of coaches. 2 humsafar trains run from Kolkata to Tirupati - TPTY HUMSAFR EX (20889) and SMVB HUMSAFAR (22887).

Kolkata to Tirupati TPTY HUMSAFR EX (20889) departs from Howrah Jn station (HWH) at 12:30 and arrives Tirupati Main station (TPTY) at 13:55. This train has 11 stoppages. Kolkata to Tirupati humsafar fare is Rs.1995 in Third AC for this train.

Kolkata to Tirupati SMVB HUMSAFAR (22887) departs from Howrah Jn station (HWH) at 12:30 and arrives Renigunta Jn station (RU) at 13:00. Kolkata to Tirupati humsafar fare is Rs.2045 in Third AC for this train.