My new apple id does not support to update my previous apple id based apps always old id and passward windows appear.....suggest me what i should i do now
You can't update apps purchased under a different iTunes account.
"Apple ID" is not the same as iTunes account - you can have several Apple ID's for different purposes (i.e. iCloud account, forum membership, iTunes/App Store account, etc.) Which one did you change?
Retrieving data ...