Ok Sachin, you have told us at least 50 times that we can't go back to the older interface - even though you changed it without asking us if we wanted it.
So how about doing the following which might help us a bit.
1 When we click through emails, stop them jumping up and down and make them stay in one place
2 Divide emails into pages and number them as before so we can get an idea of how many we have
3 When sorting by date give us the option to pick a date and when sorting alphabetically give us the option to chose a letter so we don't have to scroll through endless emails to find what we want
4 Stop our folders randomly disappearing
5 When I flag an item, make it go to the top as before. Isn't this the whole point of flagging an item?
6 Make it easier to see the email address of the sender without having to open it
7 Give us the option of when viewing emails alphabetically not to have without the senders name on a separate line above the email so the emails are sectioned off. This is really irritating
8 Enable sort by date or alphabetical with one click as before
I am sure there are more things but these are the few that come to mind at the moment.
It would be nice if you could reply with a positive answer rather than repeat your favourite phrase - Once the account is upgraded there is no way it can go back to older interface.