Indian Army — excess deduction of income tax

Address:

Virudhunagar, Tamil Nadu, 626202

My army service pension is 27000 per month in which Rs 5985 is deducted as commutaton but Rs 1180 deducted as IT each month from April 2017. IT ceiling limit is more than 2, 50000 5%on exceeding income. My exceeding income is 74000 per year. So It is too much deducted. Please clarify through msg or email at the earliest