With the majority of political parties opposing the idea of one nation- One election, the election commission has come up with a new of one year and only one election. For one nation and one poll, you must have a large number of staff and also an amendment to the constitution. Which again will take some time and finally the polls cannot be held this year in the new format.
One year one poll means that if 4 states assembly elections are due in 2019, all of them will be held at a time so that they will not spread all through the year. The elections for the parliament will be held at one go in 2019. The Assembly elections will be held when they are due that particular year.
For example, now three states are due for Assembly polls, there is a chance that all the 3 polls for the Assemblies will be held at one go. If only one state is due to go for election, the same will be taken up that year. This is the latest thinking. It looks like the BJP is not confident to go for polls this year and that was the reason the one nation one poll strategy is being delayed with the right reasons.
It will take time to get the things ready for the one nation one poll. But few parties agreed for the same. Most of them do not vouch for it.
U.Srinivas