Dear Nagaraj
No it is not true that pf annual return are not required to submit for the the accounting year 2011-12, on the other hand it is submitted the EPFO has switched online services w.e.f 01/03/2012 and now for the year 2012-13 it is not needed to submit the annual return if the ECR is regularly uploaded upon the e-sewa portal of EPFO w.e.f 01/03/2012 onwards. prior to fy 2012-13, all returns are required to be submitted in hard copy as well as txt file of 3-A is also required to be submitted for the year 2011-12 in due respect for reconlisation of pf acounts.
Regards
R B Yadav
Advocate