State Bank Of India [SBI] — tax deducted wrong

Address:

Tumkur, Karnataka, 572103

I had opened one flexi fixed deposit for 5years on 20-jun-2013 (Acc no.[protected]

I had deposited 15, 000 (10/12/2015) + 15, 000 (16/04/2018) + 8, 000 (16/06/2018) = total 38, 000

Totally i had deposited total 38, 000 & with interest it was showing 49, 000

But when i break the fd after maturity i. E., on 19/06/18 tax deducted was 19, 363 (Showing debit branch penalty) & i got only 29638 (Didn't got even my principle amount)

My query is why tax deducted on branch penalty than the actual interest.