In reference to the above, there are two half-yearly return cycles under the ESI Act. The cycles are from April to September and October to March. During this cycle, let's say the employee's gross salary was less than Rs. 15,000 until May, i.e., the employee has paid the ESI amount for the months of April and May. If the employee's gross salary crosses Rs. 15,001 as of June, ESI will still be deducted from both the employee and employer until September.
From October onwards, a new cycle will start, and hence the deductions for the above case will close. Hope this clarifies.
Regards,
Vinod Kumar
FSL