The correct answer is option 4: There is no maximum age limit for the post of the President of India. This means that any person who meets the other eligibility criteria can be elected as the President, regardless of their age.
Option 1, 2, and 3 are incorrect as they mention specific age limits. However, according to the Constitution of India, there is no upper limit on the age of the President.
It is worth noting that to be eligible for the position of President, a candidate must be an Indian citizen, at least 35 years old, and qualified to be a member of the Lok Sabha (House of the People). The President is elected by an Electoral College consisting of the elected members of both houses of Parliament and the elected members of the Legislative Assemblies of the states.