I have a gross salary below Rs. 15,000 and had ESI. During April and May 2013, I earned more than Rs. 15,000 with a performance-linked allowance (PLA), and my employer stopped ESI contributions. From June 2013, again my gross and take-home pay is below Rs. 15,000. Why am I not eligible for ESI from April 2013? Is ESI insurance on and off based on salary during contribution months of April and October? To my knowledge, only the gross is considered for ESI eligibility, not gross + PLA, which is earned based on performance. However, PLA will be paid every month if performance targets are met. Please reply.