>>That article is highly one sided and too radical.
Not at all. If anything, It is In fact too soft for the problems IAS system continues to cause.
>>What would you do after abolishing the IAS? What would it be replaced with?
That's a good question. This has been studied at length by many many brilliant minds. One of the bright minds (an EX-IAS officer) that I know who studied this at length is Sanjeev Sabhlok (https://twitter.com/sabhlok). Sanjeev has a rigourously refined solution. Highly detailed implementation plan that is so detailed that even a junior IAS officer can understand. Please visit http://www.sabhlokcity.com/tag/ias/ for general reading and his book "Breaking Free of Nehru"
>>People who complain usually would not have a good solution or are probably too far away from the ground reality.
One does not need always need to know the solution to recognize a problem. Recognizing and acknowledging the problem is first of the many steps towards solving it.
>>Is that going to end all the evil in India?
This is a necessary but not sufficient condition. No one thing will end all evil in India. There are ways to end, but not one silver bullet.