This wiki link has info for those questions.
en.wikipedia.org
With due respect, i need to counter your opinion if you think they are good for nothing and can't keep their jobs. Most of these people have versatile skills and can easily make necessary adjustments in their job profile and if at all they keep climbing in their careers further! Most of them (with their high incomes) would have also have made sustainable money multiplier investment and business plans in case their careers are not sustainable!
Again, i request you to re-consider your opinions on this, i would say any product can be sold globally and be paid in foreign currency NOT just IT products and services. Let's take this example...If Kaveri engine can be improved better than its counter parts, would it not result huge sales and also result in huge domestic savings and even if a fraction of those benefits are passed on to the engineers, that's a huge benefit for them. So if engineers work and develop quality products in Engine technology, Firmware, Chip fabrication etc their salaries can easily be on par with IT industry. Then IT industry should also do better to move in to niche areas like compiler design, developing new programming languages etc rather than making use of existing APIs developed by the Microsofts and Amazons of the world.
But all this takes some kind of transformational steps by government like collaborating with private industry by transferring the existing IP in such niche technologies to promising startups and just limit PSU's role to monitoring the milestones and timelines of those startups....something on the lines ISRO already started doing. My ramblings and intentions are not to hurt the PSU employees but to create a realistic sustainable domestic model that works and nurtures our nation.
You said the most important point - 'Most of these people have versatile skills and can easily make necessary adjustments in their job profile and if at all they keep climbing in their careers further! Most of them (with their high incomes) would have also have made sustainable money multiplier investment and business plans in case their careers are not sustainable! ' - the important factor missing in gov sector.
Rest you were is totally irreverent and nonsense, you totally confused with gov sector and private sector, capitalism vs socialism, non of the things you saying is not going to work.
Things you misunderstood -
Kaveri engine - its under powered and over weight and better option already available in market,
Chip design, firmware development - is the only few major area in India where an engineer earning more than 1lach pm. Chip fabrication etc - nonsense, there no private players in India, so 0 salary, only gov sector
Consider carrier in politics & become next CM and PM to fulfill your comments and also they yearn a lots[huge/black] of money.
FYI, Engineers are least paid, very low salary compared to other professional jobs, a major reason why now a days engineers considering coding, software development, firmware and MBA. lots of BTech/BE/PG graduates doing engg jobs for 2k to 15k in India. If you graduate in IIT, some IT company comes in and give you a job with 90lpa or more
Engineering is not about money/luxury, but creating something new{its fun}, and need a lots of money for innovation, bankruptcy is common among engineering. a major reason why only few players in top tier fields, including aircraft engine, fab etc something we cant match.
Bottom line- gov pays a lots of money to their engineers, provide infa/env for developing their skills, talent, special vacancy for their children etc something private sector can't match, but can't say same with some other gov jobs/posts. Also less than 0.001% people make money more than 1cr pa[8lpm] and I think only few engineer in it/ hard to find.