ICICI — demat account charges on closed account

I nikhil kumar kedia who was holding demat account with your bank in[protected] upto 4.12.2017 i have paid the charges uptodate on 27.11.2017, rs 826/=were paid, and on 5.12.17 i have transferred all my holding to my elder brothers account and given closure letter to your bank branch at s. D. Road branch secunderabad. But to my surprise how you are charging 3252.28/= for a closed demat account and for what,? This said amount is debited to my account on 26.2.2018 without any notice or mail to me. Please clarify why you have charged these charges to me, it is with utmost dissatisfaction of your bank staff negligence and non helpful behavior, i will and for ever regret why i had my account with your bank