India has not adopted proportional Representation in the election of:

Local Self Government

The correct answer is Option (4) → Local Self Government

First-Past-The-Post (FPTP) system is an electoral method in which the candidate who gets the highest number of votes wins, even if they do not get more than half of the total votes.

• The President and Vice-President are elected using proportional representation by means of the single transferable vote (STV).
• Members of the Vidhan Parishad are also elected through proportional representation (STV) in various categories.
• However, elections to Local Self Government bodies (like Panchayats and Municipalities) are generally conducted using the first-past-the-post system, not proportional representation.