Dear Mr Ghosh,
The proposal to raise the limit with regard to ESI & PF is under consideration. So far no official notification/circular has been issued by the department apart from a statement given by the Hon'ble Labour Minister, Central Government. I suggest that you should keep watch on the respective sites of ESIC and EPFO on regular basis.
Please find an attachment being statement published in news paper, which is self explanatory.
Sibabrata Majumdar
Management Consultant HR & Legal
Kolkata, Mb:9830023706