Honorarium per month from 5 years.

I m on contract (through not any Contractor) working in U.P. judiciary last 5 years. I m getting Rs. 50000 per month as honorarium. I have diducted income tax every year as salaried person and file ITR but this year my accountant saying he will deducting 10% every month from honorarium.

Sir/ Mam want to know is it right or wrong as per Income Tax Rules ?