Dear Perumal,
As per Payment of bonus act, those employees who are drawing salary upto Rs.10,000/- are eligible. Where as Bonus amount shall be claculated on Rs.3500/- salary per month(Whose salary is in excess of Rs.3500/- and upto Rs.10,000/-). Those salary below if any according to their salary bonus has to be calculated. In other words just to cover the employees for bonus act, ceiling limit has been increased up to rs.10,000/-pm from Rs.3500/- pm. Hope i have clarifide you.
Regards
Chandrshekar
Bangalore