Service tax is nothing but Goonda Tax

how advocates are kept out from service tax?

You may read this link, a detailed discussion related to taxes is done at https://www.reasonforliberty.com/anarcho-capitalism/what-really-are-taxes.html

An extract from the above link: What is income tax? It is the price of permission to earn a living. Ohh yes you are not free, as a dutiful slave, you have to pay to your master if you want to live. How the hell one can live without earning? If he wants to live, he needs to earn and hence he need to pay tax. Life is not FREE; there is no right to life. If you want to innovate and begin an enterprise, you need to pay for permission as there is Corporate Tax, if you don’t want to be unemployed, you need to pay for permission as there is Self-Employment Tax.

The difference between direct taxes and indirect taxes is, in Indirect taxes, government can force a particular sector to bear the charges of permission for all, those who pay direct taxes, cannot demand reimbursement from others.

Remember, all this discussion of taxes is about a statist system which is completely free, there is no corruption, no bribery no embezzlement. Still, since taxes themselves are loot, everything is costly, but in real state authoritative system, corruption, embezzlement, scams by government, bureaucrats, clerks, corporate, babus and politicians also comes in the calculation, making the life further costlier than what it could have been in free market.

Now the question how government misuses taxes, as I explained indirect taxes by example of subsidized rice in Chhattisgarh and MP and in other south Indian states, by announcing such misleading subsidies and making people think government is helping poor, government delude public and wins votes. Many times, it creates reservation groups to maintain vote banks, its all illusive help.