It is people like Periyar(who is nothing but the earlier Avatar of modern day's cunning politician) who brought in casteism & divsions in the society. I dare anybody who say Periyar as great to teach any of his teachings(like opposing God) to the followers of Islam & see the chaos it will create in the society. They will be hounded & hanged. The only one objective Periyar met in his life is to attack the poor, helpless Brahmins & the othe rupper caste people for no fault of theirs and making their life miserable for ever and reaching and reaping all political gains & benefits at their cost.