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 Tirupati to Kolkata - DURONTO EXPRESS (12246).

Tirupati to Kolkata DURONTO EXPRESS (12246) departs from Renigunta Jn station (RU) at 16:45 and arrives Howrah Jn station (HWH) at 17:05. This train has 4 stoppages. Tirupati to Kolkata duronto fare is Rs.5335 in First AC, Rs.3240 in Second AC, Rs.2385 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 Tirupati to Kolkata - HWH HUMSAFAR SF (20890) and HWH HUMSAFAR (22888).

Tirupati to Kolkata HWH HUMSAFAR SF (20890) departs from Renigunta Jn station (RU) at 16:20 and arrives Howrah Jn station (HWH) at 19:00. This train has 10 stoppages. Tirupati to Kolkata humsafar fare is Rs.1995 in Third AC for this train.

Tirupati to Kolkata HWH HUMSAFAR (22888) departs from Renigunta Jn station (RU) at 16:20 and arrives Howrah Jn station (HWH) at 19:00. This train has 15 stoppages. Tirupati to Kolkata humsafar fare is Rs.2045 in Third AC for this train.