Sir the thing is, when affluent and powerful section of society A uses a certain section B of society, oppress them, don't provide them necessary attributes for development, the section B section may go against section A. Sometimes it is through non-violent means and sometimes by violence. But when B retaliates, A cry foul instead of looking that its their wrong policies that created this situation.
In India, the lower castes, SC,ST,OBC were used by the higher castes for votes purposes. They were oppressed, denied of their rights like education, job opportunities and were treated as lower quality of human beings. Many of these lower castes started demanding rights and reservation. As they were good vote banks, they got reservation. Now the same lower caste is ruling over the higher caste. Higher caste competing hard whereas the reserved caste gets benefits. Now these upper caste cries foul. They didn't say anything when the lower castes were oppressed. Even lower castes are now held responsible for corruption etc. but it was the higher caste from which they learned. They got their rights by non-violent means.
Now in case of Maoists, it was a region of oppression by the State. They were denied of their fundamental rights, lack of education, financial security and development. State started confiscating their only source of income that is land, for mining purposes and others. Now, it became the matter of survival for these people as they didn't get anything or very less in return. Few picked up guns. People followed them. Violence increased and vicious circle got created.
It happened everywhere in the world. Problem is when these backward people retaliate (backward shouldn't be taken as offense, I just used it for explanation purpose), the upper class cries foul.
Don't take away their rights, provide them education, financial security and develop them. Don't let them have bullets instead of books. Don't kill their women and children.
It will take time but its the only way to solve disputes. Tribals are warrior class, they will retaliate with Violence.
Problem is people can't see what has happened to them.