PF Claim status link across TamilNadu :
http://www.epfochennai.tn.nic.in/tnepf/loginnew.aspx
PF Claim status link across India:
http://www.epfindia.com/indiaepf%5Cloginnew.aspx
Link to find Establishment code :
http://www.epfindia.com/indiaepf/NameSearch.aspx
Other links :
http://www.epfindia.com/
http://www.epfochennai.tn.nic.in/default.asp
For Oracle :
https://www.dkm1968.com/Login.ASPX is the direct link for online reports.
You can also click on Member Login Link at http://www.dkmonline.com
DKM Comp_Code - ORACLE
