It is again a hot discussion topic on how we can implement One Nation One Election.
We can implement One Nation One Election by using an electoral college in a two-tier representation system.
Once every 5 years, the people shall elect intermediary representatives to form an electoral college and the electoral college shall elect the members for the respective state assembly and parliament. This can reduce the election expenses drastically and corruption in politics also will reduce considerably. For the voters there shall be elections once every five years, but that doesn't hinder them from calling back or replacing incompetent representatives.
Details in my previous post.
https://bharatnamaskar.blogspot.com/2020/12/one-nation-one-election-through-two.html