Can a person who is already a member of either House of Parliament or a House of the Legislature of any State be eligible for election as President?
No, a person who is already a member of either House of Parliament or a House of the Legislature of any State cannot be eligible for election as President. According to Article 59(1), "The President shall not be a member of either House of Parliament or of a House of the Legislature of any State, and if a member of either House of Parliament or of a House of the Legislature of any State be elected President, he shall be deemed to have vacated his seat in that House on the date on which he enters upon his office as President."