Sharma ji, See you your self bring biggest fault in your argument by saying " Some politicians r relatives of senior people, bcz politicians relatives r not forbidden."
You are contradicting yourself. When Sonia or Rahul become president of congress, you hate dynasty. When Vasundra become CM, you see no problem with dynasty.
Morally their is not much difference between BJP and Congress.
Your love for BJP has obstructed your rationality.