What are 'Passenger', 'Ordinary', 'Express', and 'Fast Passenger' trains?

Answer 1

PASSENGER AND ORDINARY TRAINS ARE SLOW AND FOR RURAL AREA BETWEEN THE TWO CITIES.
EXPRESS AND FAST PASSENGER ARE TRAIN WHICH RUN FAST AND STOP AT THE SELECTED STATION OF CITY.

Answer 2

Passenger are trains which stop at almost all stations. The is the least compared to other modes. Normally there are no higher class coaches in these and also run in branch lines mostly.
The ordinary are fares for trains of passenger in branch and mainlines. General sitting accommodation only will be provided for this ticket.
Express fares are collected for express and mail trains which are faster and generally these trains have all facilities of higher class coaches including air-conditioned and also dining cars are provided in certain trains where more than a night travel is involved.
Fast passengers trains do not run as fast as express but better than passenger trains, by skipping some of the stops, but have fares of passenger only. There is a popular demand for such trains and is always full.
You have left superfast trains and these run at a speed better than express trains and have limited stops. Besides Rajhadani trains run with fares which include food also.
VR

Answer 3

In general, Passenger trains (also 'ordinary passenger trains', or 'stopping passenger trains') are the ones that stop at all, or nearly all, of the stations along a route. Most of these tend to be quite slow. Express trains skip many stations and stop at only selected ones. An express train need not be a particularly fast train, although there is often an expectation that it will run fairly fast, at least faster than the ordinary passengers on the same route. (See the term 'superfast' below.) Fast Passengers are an in-between class — while no real criterion appears to exist for labelling a train a fast passenger, but in general they stop at a lot of stations along the way (many more than for an express, but fewer than for an ordinary passenger) and have a higher average speed than the ordinary passenger services on the same section. They also generally have reservable sleeper coaches, something not seen in ordinary passenger trains. E.g., the Nagpur Tatanagar Fast Passenger has three sleeper coaches [12/04].
Passenger trains are also known as 'ordinary trains' in some places. Express trains and mail trains (see below) are together often referred to as 'mail/express' or 'M/E' trains.
In timetables, some trains are marked as 'Express/Passenger' which implies that they are like passenger trains along some sections of their route, halting at all or almost all stations, and skipping halts on other sections. The express fare surcharge in such cases is applicable only to the express portion of the journey. Generally these trains have one passenger section and the rest of the route is express (or vice versa), and trains with several passenger sections separated by express sections appear to be very rare.
'Special' trains are ordinary trains in terms of their accommodations and speed. They are so termed because they do not appear in the normal timetables and are run during vacation / festival times and at other times when there are seasonal surges of traffic along certain routes. Also known as 'Holiday Specials'.
Occasionally, trains have been marked 'Premium' or 'Premium Special', especially holiday specials and other special trains. The term appears to apply only to trains that run at an average speed of 60km/h or above.

Answer 4

Passenger - they are daily/preferred days trains that travel for a short distance.
Express - they are like point-to-point trains that run form one source to a destination at a particualr spped.
Fast Passenger - same as the first except the diff in speed.
Super-fast - these are express train that travel at relativley high spped with very limited stops in the course of its journey.