INDIAN RAILWAYS= Wastage of Time!!!

I have completed one year of my PGDM and also one year in Mumbai. Its now time for our summer internship. I have been lucky enough to get it in my home-town, Kolkata. In this last one year this is the first time that I am travelling by train. Its now 7.30 in the evening and I started my journey at 7 in the morning. Just now the train left Nagpur. It took 12 hours to reach Nagpur from Mumbai!! Whereas by flight it takes only one and half hours!! So can u imagine the difference? Ok fine I agree that an aircraft travels at a speed of 500 kmph to 700 kmph whereas a train runs at around 110-120 kmph. So whom do we blame for this? The railway authority perhaps because they are not paying much attention to the infrastructure. Think of the Bullet Train in Japan, it runs at a speed of 350-400 kmph!! How's that possible? That has been possible because of one main reason and that is they give value to TIME, time is money for them. So they were in much need of a fast commuting vehicle which gave birth to the legendary Bullet Train. Here we are not bothered about time. All the passengers around me are happily dozing off or playing cards or hogging on food or else busy on their cell phones. Who wants to get down from the train early? I spoke to one of my co-passenger and asked him don't you think that travelling by the train is a waste of time as it takes 30 hours to reach Kolkata whereas by plane it takes just two and half hours? His reply was, "arey yaar jaldi pohchunga toh kal hi office mein report karna hoga. Main toh chahata hoon ki train todha late kare ta ki kal office report karna na pade". So you can well imagine the mentality of the common people.
If you don't know the value of time how can you think of managing it? When time management comes into question only then one can think of ways to save time or manage it properly (like the bullet train or an aircraft). Indian Railways is thus chugging through the decades in this same snail speed without anyone making any complain.
Now comes the question why there hasn't been any improvement though technology has advanced so much? We have seen new German coaches being introduced, Government thinking of providing the passengers with on board communication system like telephone and maybe internet in the near future. Number of trains plying between different cities has also gone up but what about the speed and time? In the last 10 years though trains have increased what about the tracks? They are the same and hence speed cannot increase because on the same track there are at least three trains running one after another, obviously with a big distance between them. So when they come closer to each other there is no option but to stop the second and the third train until the first one gains the required distance between itself and the second one and so on.
So, what is the Indian Government thinking of this? Or they also have plenty of time at their disposal?