SBI — Money deduction from my account by other without any message on my number

Address:

SBI mitauli lakhimpur kheri

I am account holder in sbi, My name is kuldeep kumar Mishra, My account no. is [protected] IFSC SBIN0011226.
Rs 2000 deducted from my account without any message on my number, and I did not get that money. Statement shows "FI txn CSPoutlet" on 29 feb 2024 This All has been done by bank, please return my money.
Otherwise I will complain at higher level.