Prosecution was the priority of Britishers in pre independence era because they were keen to establish rule of law, may be their rule in their empirical interest and hence they tried to ensure compliance and for that punished those who failed to respond as per law and legal requirement.
Howsoever wise it was administratively and politically for the British crown, its utility was not sold convincingly to Indian people and it was never implemented for the welfare or good of national locals. Gradually the system that was sought to be implemented by the Britishers sold some inbuilt new political concepts to Indian Nationals. This message conveyed to the masses was really new and due to  the vastness of Britishers own exercise it came to be spread throug out the geographical territory of british India.
But the enforcement of law by the Britishers earned them the wrath of locals and Indians grew inimical to law mainly because it was not carried to them, never sold to them, perhaps was not in conformity with local sentiments, ground reality and perhaps offended them more due to their own ignorance ,illiteracy , unwillingness. The popular politicians exploited all these dimensions . 
And the people , the locals started to rise against the system in the name of their political freedom. 

People started to rise against law, legal machinery and its enforcement. Prosecution was the most hated state wing.

after independence we did not change the values nor educated our own people and continued with the hatred with law , a mindset against law enforcement and contempt for all those who were engaged in prosecution.