It is not entirely true that online booking benefits the tech savvy/elite. Before the advent of the online booking one has to go to the railway station (as they were the only places where you can reserve a ticket) stand in a long queue and make reservation. With online booking now there are many authorized railway travel agents at many parts of the city to whom one can go (if one is not tech "savvy") and they will do the booking charging a small fee.
1. Private Universities: No. But there are tons of private institutes under universities.
2. Public Transport: Trains no. Buses - in most parts of the country (eg. Madhya Pradesh)
3. Power: Tata Power, Reliance etc. Coal mining is the part that has not been privatized, AFAIR.
4. Aeronautics: No, but airtravel yes. Secondly, the aeronautics industry and research in India is still at a very nascent stage - so I am not sure if it really hurts the economy/society.