ICICI Bank - Home Loan — Tenure increased and no decrease in EMI

I have Taken a loan in 2006 for 1900000 and FRR was 10.25.It was increased 13.25 and I was still paying all EMI correctly.Currently now 2009 I recieved a msg that EMI has been revised and decreased by .50%, but my EMI remains the same and tenure has been increased to 300 months without informing me.I am not sure what they mean by saying your FRR has been reduced by .50% when my EMI is the same and tenure increased?