The springing up of a large number of caste based parities was a reaction to the millenia of torture and persecution carried on by the so called upper castes. Now if you say that creation of Modi is a reaction to that, then, Modi is a reaction to reaction, not a reaction to an action.
Further, Mr. TCA Srinivasa Raghavan, is himself behaving like a perfect Indian as defined by him. He is judging the actions of Mr. Modi in the context of existence of identity based politics and finds it justified. Ramanujam test applies to him perfectly. He finds the otherwise immoral acts of Modi to be moral in the context of existence of caste based parties.