The question is about understanding the process of presidential election and impeachment in India. Each option represents an important component of the Indian legislative system.

Option 1, Lok Sabha, is the lower house of the parliament. Its members participate both in the election and impeachment of the President, hence it is not the answer. The same goes with option 2, the upper house of the Parliament, Rajya Sabha.

Option 3, State Legislative Councils, while presenting members to participate in presidential elections, do not partake in the impeachment process. However, this is not the correct answer according to the question.

Option 4, State Legislative Assemblies, is the correct answer. The members of this legislative body do take part in the presidential election, but they are not involved in the impeachment procedure of the President, fitting the question`s criteria exactly. Therefore, State Legislative Assemblies, do form part of the electoral college but do not form a part of the forum for Presidential impeachment.